Sentry Audio Video Review for Large Estates

The research in brief

Sentry Audio Video is a good fit for luxury estate security integration, with the strongest case in South Florida and New York. Two of seven platforms named it during the ranking stage (Grok and Perplexity), a 28.6% share of included platform responses, at an average listed rank of 4.5 and a best rank of 4. The strongest reason to consider it is a single-integrator scope covering Control4, Savant or Crestron automation alongside Lutron lighting, surveillance, gates, access control and estate networking ^[32]. The main limitation is that no public pricing, monitoring contract, response-time guarantee or independent performance verification was located, so buyers must confirm monitoring scope, SLAs and costs in writing ^[18].

Research Snapshot

Why Sentry Audio Video Qualified for This Study

Questions explored

• Is Sentry Audio Video a good choice for luxury estate security integration on a new estate build?
• How many AI platforms recommended Sentry Audio Video for large estate security and automation projects?

Sentry Audio Video qualified because it was named by two of the seven platforms during ranking discovery and because its public scope maps directly onto the study's five criteria: custom integration capability, white-glove service, premium equipment brands, estate perimeter coverage and dedicated support. It was not a unanimous pick. Five platforms evaluated the company without naming it in the ranking stage, and fit ratings across the seven platforms ranged from strong to uncertain.

The company describes itself as a family-owned, Florida-licensed low-voltage contractor serving homes, estates, condominiums and businesses throughout Boca Raton, Palm Beach County, Broward County and the surrounding South Florida market (official:C1). It states that it designs, installs and services Control4, Lutron HomeWorks, Savant, Crestron, Josh.ai, Brivo, enterprise networking, surveillance, access control and monitored security systems, including new construction, renovations, upgrades, repairs and complete takeovers of systems installed by other companies (official:C1).

Platform-level fit ratings were: strong (Gemini), good (Claude, Grok, ChatGPT, Perplexity) and uncertain (DeepSeek, Kimi). That spread is itself a finding: the platforms agreed on the company's relevance to luxury integration but disagreed on how much of its estate-security capability is publicly verifiable.

This review sits inside a broader comparison of luxury estate security integration providers, and the same evidence limits apply across that set.

The service or product in focus

Questions explored

• Which Sentry Audio Video service package should a buyer choose for a large estate that needs gates, cameras and access control on one platform?
• Does Sentry Audio Video offer a published estate security package with fixed pricing, or is every project custom quoted?

There is no standardized public package. The relevant offering is a custom-quoted integration scope, not a named plan with published tiers. The ranking-stage description referenced "Luxury Smart Home Integration with Savant/Control4/Lutron and integrated security" plus "residential integration with secure remote access and 24/7 remote monitoring / concierge-level support," but the reviewed public pages do not present that as a fixed, standardized package ^[2].

What the company does describe publicly is a full-service model: consultation and proposal through installation, programming, commissioning and ongoing support, with the integrator taking ownership of the complete picture ^[20]. It states that it supplies and installs all of its products and works in residences as well as businesses ^[18].

The platform stack most relevant to a large estate is Control4, Savant or Crestron for control, Lutron HomeWorks for lighting and shades, Josh.ai for voice, Brivo for cloud-managed access control, Ubiquiti UniFi for estate networking, and surveillance with access control and gate integration ^[18]. Brand availability, exact models and compatibility remain project-dependent ^[32].

One conflict to flag: the ranking description emphasized Savant/Control4/Lutron, while the reviewed public pages also emphasize Crestron, and virtual guarding is described as plan-dependent. The exact recommended package is therefore not publicly standardized ^[32].

What the AI Platforms Agreed About

Questions explored

• What do AI platforms agree Sentry Audio Video does well for luxury estate security integration?
• Is Sentry Audio Video's premium brand stack, including Control4, Savant and Lutron, confirmed across multiple AI platforms?

Agreement was strong but not unanimous on four points.

First, custom integration breadth. Multiple platforms independently described Sentry as designing, installing, programming and servicing Control4, Savant and Crestron systems for residences and estates, coordinated with Lutron, networking, security, cameras, gates and access control ^[32]. Google reported integration of Control4, Lutron, Savant, Crestron and Josh.ai across Florida and New York divisions ^[7]. Anthropic reported integration of Savant, Control4, Lutron HomeWorks, Crestron and Josh.ai supporting lighting, shading, climate, surveillance, access control and gates in a single interface ^[25].

Second, premium brand stack. Platforms converged on Lutron HomeWorks, Ketra lighting, Palladiom keypads and shades, Control4, Savant, Crestron, Josh.ai, Brivo access control, Ubiquiti UniFi networking and AudioControl Pro ^[18].

Third, estate perimeter framing. Sentry describes residential perimeter locations including gates, driveways, doors, pool areas, docks and detached structures, and identifies limitations affecting video analytics ^[35]. It approaches estate entrances as part of a complete security and property-control strategy, coordinating surveillance, intercoms, gate access, automation and ongoing support ^[13].

Fourth, commissioning discipline. Sentry states that commissioning verifies cameras, access, alarms and control work as one system, and that for a luxury residence this can mean confirming a gate event triggers the right camera view, alerts the correct household members and preserves usable video ^[9].

Agreement among AI platforms does not establish product quality. In this case, most of the underlying evidence is company-owned marketing material.

Where the AI Platforms Disagreed or Were Uncertain

Questions explored

• Is Sentry Audio Video's 24/7 monitoring and concierge-level support verified, or is it an unconfirmed marketing claim?
• How much does Sentry Audio Video cost for a large estate, and why is pricing unavailable before consultation?

The sharpest disagreement concerns monitoring. Grok reported that Sentry provides central-station alarm monitoring but noted no independent confirmation of dedicated 24/7 concierge-level support ^[2]. Perplexity found that the website suggests monitoring, remote monitoring and concierge-like support, but that the exact service level is not clearly standardized or independently verified ^[2]. Anthropic concluded that no independent 24/7 professional monitoring operation, concierge response team or NOC center is documented, and that remote monitoring relies on the owner and their chosen professional monitoring service ^[19]. Deepseek could not confirm the ranking-stage 24/7 monitoring claim on the company's public site at all ^[2].

Pricing is a second unresolved area. No platform located published pricing. OpenAI reported low pricing confidence and no verified use-case-specific pricing for estate integration, virtual-guard monitoring, remote support or ongoing service ^[10]. Anthropic reported no published per-unit, per-service or fixed pricing, with pricing described as project-based and custom ^[28]. Perplexity found no public base package price, monitoring fee, labor minimum, design fee or programming rate ^[30]. Google reported moderate pricing confidence and a strictly custom-quote basis with free initial estimates ^[11].

Geographic scope is a third area of inconsistency. OpenAI reported service areas including South Florida, Long Island, Manhattan and the Hamptons ^[32]. Google described South Florida, Orlando and a Northeast division covering Long Island, Manhattan, the Hamptons and Greenwich, Connecticut ^[7]. Perplexity noted that one page says South Florida and Orlando while other pages also reference New York and the Hamptons, and that the full footprint is broad but not fully consistent across pages ^[2]. Anthropic stated that national or multi-state availability is not mentioned and that coverage is documented across South Florida ^[18].

A fourth uncertainty concerns entity and credential verification. Anthropic flagged that public records show Brian Zeidman associated with multiple companies, including an expired contractor license in Florida as of 2025, and that the current legal entity and liability for Sentry Audio Video, LLC (incorporated 2021) is not independently verified beyond company claims ^[18]. Google noted a legal entity name of Sentry Audio Video, LLC appearing in a regional contract docket in late 2025, which it characterized as typical of an active regional contractor ^[1]. Deepseek found no public record of security-alarm licensing, low-voltage licensing, insurance or manufacturer certification tiers ^[2].

Features for this home service need

Questions explored

• Can Sentry Audio Video cover gates, docks, pool areas and detached structures on a multi-acre estate?
• How does Sentry Audio Video handle estate network design, remote access and cybersecurity for a large property?

Perimeter and access control. Sentry describes coverage for gates, driveways, front and secondary doors, pool areas, docks, detached structures and perimeter transition points, with camera design, analytics, two-way audio and access-control coordination ^[36]. It describes personalized keypad codes, mobile credentials, vehicle remotes and controlled access for household staff, plus immediate notification when a person approaches a pedestrian gate and logging of vehicle entries ^[13]. A verified visitor can trigger a gate release and notify the appropriate person, and an after-hours approach can activate selected lights, display camera views on designated touch panels and preserve recorded video ^[13].

Access management. Instead of distributing physical keys, owners can establish managed access for approved people and review activity when needed, which Sentry frames as simplifying life for household staff, guests and service providers ^[19].

Surveillance design. Sentry states that for larger homes, thoughtful camera placement is critical, with the goal of covering driveways, entries, perimeter areas, docks and outdoor spaces without creating blind spots or compromising the home's appearance ^[19]. Its video surveillance scope includes view, recording, retention, remote access, network capacity and user permissions ^[34].

Network infrastructure. Sentry designs the network and automation as one scope, reserves or documents critical addresses, keeps fixed rack equipment wired, coordinates switch settings and tests each control interface after network changes ^[33]. It treats estate Wi-Fi as property infrastructure, coordinating installation with the home, builder, designer or property manager as appropriate ^[15]. Control4, Savant, Crestron, Josh.ai, Sonos, televisions, surveillance cameras, access control, pool equipment, lighting processors and shades all depend on estate networks ^[33].

Remote visibility. Sentry states that remote visibility depends on professional network design, correct camera placement, secure account configuration and equipment that can be maintained over time ^[20]. It describes an owner being able to check cameras, receive meaningful alerts, verify doors and gates are secure and adjust systems from wherever they are, with the stated objective being confidence rather than constant notifications ^[19].

Maintenance. Sentry offers estate technology maintenance plans addressing updates, commissioning verification and security system testing, with maintenance verifying camera views, recording status, remote access, storage capacity, notifications and critical access points ^[14]. It states that updates should never be applied carelessly to a working estate system ^[14].

Acknowledged limitations. Sentry acknowledges that virtual guarding does not replace every on-site security need and that video analytics can be affected by weather, blocked views, unusual lighting, crowded scenes and camera tampering ^[36]. The public material does not specify a universal cybersecurity standard or guaranteed uptime ^[27].

Pricing, contracts, and ongoing costs

Questions explored

• What recurring costs should a large estate buyer expect from Sentry Audio Video for monitoring, cloud storage and maintenance?
• Are there minimum contract terms, cancellation fees or equipment ownership rules in a Sentry Audio Video estate agreement?

No public pricing was verified by any platform. This is the single largest information gap in the study.

Known cost categories. Custom equipment, engineering, installation, programming, networking, cameras, access control, gates, structured cabling and automation will likely be quoted per project, with exact amounts unclear ^[10]. Remote monitoring, service and support may create recurring charges, but public rates were not found ^[10]. Google listed potential additional fees including consultation-specific hardware components, ongoing subscription fees for cloud-managed access platforms such as Brivo, monitored security fees for professional central-station alarm monitoring, and system-specific software licensing fees such as Control4 or Savant license costs ^[11].

Contract terms. No public monitoring agreement, minimum term, renewal policy, cancellation policy, warranty terms or service-level agreement was verified ^[10]. Anthropic reported that contracts and terms are documented in written proposals and service agreements per company materials, but that specific contract length, cancellation policies or SLAs are not disclosed publicly ^[28]. Google reported that terms of service, warranty details and ongoing support parameters are defined on a per-project basis within individual proposals and service agreements, and that there is a no-return policy on custom-ordered hardware or specialized equipment once a project finalizes ^[11].

Pricing confidence was rated low by ChatGPT, Claude, DeepSeek, Grok, Perplexity and Kimi, and moderate by Gemini. The practical implication for an estate buyer is that budget alignment is impossible before a design consultation, and that all recurring charges should be itemized in the proposal rather than assumed.

Best Suited For

Questions explored

• Who is Sentry Audio Video best suited for in a luxury estate security integration project?
• Is Sentry Audio Video a good fit for a seasonal or frequently vacant estate that needs remote visibility?

Sentry Audio Video is best suited to a specific buyer profile rather than the general luxury estate market.

New luxury construction or major renovations inside its stated service regions. Multiple platforms identified new builds and full-property overhauls as the core fit, particularly where early low-voltage planning matters ^[10].

Owners wanting one integrator across automation, security and networking. The company's stated scope covers Control4, Savant or Crestron control with Lutron, cameras, gates, access control, networking and automation, coordinated by a single provider ^[32].

Seasonal or high-value residences needing remote oversight. Sentry states that integration is particularly valuable for second homes and properties that are vacant for extended periods ^[20].

Buyers who value a single point of contact. Sentry describes white-glove design, installation and ongoing service with a single point of contact and support spanning AV, automation, networking and security ^[10].

South Florida and New York estate owners specifically. The company is a Florida-licensed low-voltage contractor based in Boca Raton, and its documented service footprint centers on South Florida with a New York presence ^[18].

Probably Not Best Suited For

Questions explored

• Who should not choose Sentry Audio Video for luxury estate security integration?
• Is Sentry Audio Video the right choice for an estate that needs armed guards, patrols or emergency response?

Buyers who need documented 24/7 professional monitoring as a contractual commitment. Anthropic concluded that 24/7 professional monitoring and concierge-level response services are not part of Sentry's documented offering, and that remote monitoring depends on owner coordination with a separate professional monitoring service ^[19]. Deepseek could not confirm the ranking-stage monitoring claim on the public site ^[2].

Buyers requiring armed protection, patrols, guards or formal security operations. OpenAI listed this as a reason to choose a dedicated security company or security-management firm instead ^[36].

Multi-state estate portfolios. OpenAI advised choosing a larger national or multi-region integrator when the estate portfolio spans states and requires consistent service coverage ^[32]. Anthropic stated that national or multi-state availability is not mentioned ^[28].

Buyers who need published pricing or standardized contract terms before engaging. Every platform reported that pricing is custom-quoted and not public ^[10].

Buyers requiring independently documented certifications or guaranteed local response times. OpenAI listed this explicitly as a reason to look elsewhere ^[32]. Deepseek found no public record of security-alarm licensing, insurance or manufacturer certification tiers ^[2].

When Another Option May Be Better

Questions explored

• What is a better alternative to Sentry Audio Video for an estate outside South Florida or New York?
• When should a buyer choose a dedicated security firm instead of Sentry Audio Video for a large estate?

Choose a larger national or multi-region integrator when the estate portfolio spans states and requires consistent service coverage ^[32]. Choose a dedicated security company or security-management firm when armed protection, patrols, guards, emergency response or formal security operations are primary requirements ^[36]. Choose another integrator when the buyer requires published monitoring SLAs, transparent recurring pricing, independently documented certifications or a guaranteed local response time ^[32].

Anthropic added several specific triggers: when the buyer requires 24/7 professional NOC monitoring with concierge-level intervention as part of a single integrated service; when the property is outside South Florida or spans multiple geographic markets; when the buyer prioritizes transparent published pricing and SLAs with defined response times; when the buyer seeks a turnkey vendor providing both integration and professional alarm monitoring under one contract and one support number; when the property requires certifications or compliance standards beyond typical residential luxury integration; or when rapid deployment is needed in a market where Sentry does not have established operations ^[28].

Grok framed the same limits more simply: nationwide or non-FL/NY estate projects should consider broader integrators, and buyers needing publicly documented ultra-premium pricing tiers or exclusive Crestron focus should look elsewhere ^[2].

Kimi named specific alternatives it considered better documented for particular priorities, including Synaedge for AI-native security middleware, Peters Audio Video for published estate-tier pricing, PerimeterEye for a contract-free ownership model, and Scorvus ITS for concierge monitoring with direct expert access ^[2]. Those comparisons come from a single platform and were not independently verified in this study.

Questions to ask before choosing a provider

Questions explored

• What should a buyer confirm with Sentry Audio Video about monitoring, licensing and SLAs before signing an estate contract?
• What documentation should Sentry Audio Video provide at handoff for a large estate security system?

Monitoring scope. Is 24/7 live virtual-guard monitoring available for this specific residence, and is it continuous or event-triggered? Who operates the monitoring center, where is it located, and what accreditations, licensing and escalation procedures apply ^[36]?

Response commitments. What are the guaranteed response times for technical support, alarm events, camera outages and urgent on-site service ^[10]? What is the SLA for service response and remote support, and is it contractual ^[2]?

Equipment specifics. Which exact camera, analytics, access-control, alarm, gate, intercom, recording and backup-power models are proposed ^[10]? Which platforms are included - Control4, Savant, Lutron HomeWorks, Crestron, Brivo and UniFi Protect - and what is standard versus optional ^[12]?

Coverage design. How will the design cover gates, driveway approaches, perimeter transitions, guest houses, docks, pool areas, service entrances and blind spots ^[35]? Can the system cover gates, perimeter cameras, docks, seawalls, outbuildings and staff access the way the estate requires ^[24]?

Cybersecurity and continuity. What cybersecurity controls are included for remote access, user permissions, firmware updates, network segmentation, audit logs and account recovery ^[27]? Which functions remain operational during internet, power, cloud-service or control-platform outages ^[33]?

Costs and terms. What are the one-time design, engineering, installation, programming and commissioning charges, and what recurring costs apply to monitoring, cloud storage, cellular backup, software, remote support, maintenance and service visits ^[10]? Are there minimum contract terms, automatic renewals, cancellation fees, equipment ownership rules and warranty exclusions ^[28]?

Licensing and credentials. What is the current license and insurance status for low-voltage and security/alarm work, and are you an authorized or certified Control4, Savant or Lutron dealer, and at what tier ^[2]? What specific certifications does Sentry hold, and how are they verified ^[18]?

References and handoff. Can Sentry provide references for comparable Large Estates and a written system documentation, training and handoff package ^[10]? Will it provide complete as-built documentation and labeled wiring maps of the home's security and network rack upon project completion ^[11]?

The consensus assessment

Sentry Audio Video is a good fit for luxury estate security integration, with the strongest relevance for a new-build or major-renovation estate in South Florida or New York that wants integrated luxury automation and technology-led security from one white-glove provider. Two of seven platforms named it in the ranking stage, and platform fit ratings ranged from strong to uncertain.

The consensus case rests on integration breadth, premium brand coverage, estate perimeter framing and commissioning discipline. The consensus caution rests on unverified monitoring scope, absent public pricing, inconsistent geographic descriptions and thin independent evidence. Company-owned citations materially outnumber independent citations in this study, and no independent verification of monitoring-center operations, certifications, response performance or customer outcomes was located.

The practical recommendation is to proceed to a detailed site survey and competitive bid, but not to treat the public material as proof of 24/7 monitoring, guaranteed response, cybersecurity certification or complete physical-security coverage until those items are documented in the proposal and contract.

How This Review Was Produced

This review was produced from a structured multi-platform research run dated 2026-09-30. Seven AI platforms evaluated Sentry Audio Video against the luxury estate security integration use case: ChatGPT (gpt-5.6-luna), Claude (claude-haiku-4-5-20251001), Gemini (gemini-3.5-flash), Grok (x-ai/grok-4.3), Perplexity (perplexity/sonar), DeepSeek (deepseek-v4-flash) and Kimi (moonshotai/kimi-k2.6). Six of the seven ran with search enabled; DeepSeek ran with search disabled.

Ranking-stage mentions were counted only for platforms that named the entity during ranking discovery. All seven platforms evaluated fit, but only Grok and Perplexity named Sentry Audio Video in the ranking stage. Fit ratings, strengths, limitations, pricing findings and verification questions were extracted from each platform's structured response and consolidated here.

The same research set underpins the wider home security and smart home systems category directory.

Research limitations

Several limitations apply to every finding in this review.

Company-owned sources dominate. Of the 39 deduplicated citations in the catalog, 38 are company-owned and one is independent. Company claims are not independently verified facts.

Platform-reported research dates differ from the authoritative run date. Deepseek's response is dated 2026-06-10, while the run research date is 2026-09-30. Platform-reported dates are provenance metadata and do not independently prove freshness.

Deepseek ran without search enabled, so its findings reflect model knowledge rather than retrieved evidence and require explicit verification before being treated as current facts.

The supplied URLs were collected from platform responses and were not independently validated by the writer stage.

No platform reported personal testing, customer experience or independent verification of Sentry Audio Video's performance. No pricing, monitoring contract, SLA, certification or response-time commitment was verified by any platform.

Where platforms disagreed, this review preserves the disagreement rather than resolving it. Missing research is not treated as disagreement.

Sources

Company-Owned Sources

1. Investor, Builder & Operator - About Brian Zeidman: https://brianzeidman.com/about/
2. Sentry Audio Video - Official Website: https://sentryaudiovideo.com/
3. Access Control vs Alarm vs Cameras: https://sentryaudiovideo.com/access-control-vs-alarm-vs-cameras/
4. AudioControl Pro Installation & Service in Boca Raton: https://sentryaudiovideo.com/audiocontrol-pro-boca-raton/
5. AudioControl Pro Installation & Service in Boca Raton - Sentry Audio Video: https://sentryaudiovideo.com/audiocontrol-pro-installation-service-boca-raton/
6. Fire Alarm Services Boca Raton | Sentry AV: https://sentryaudiovideo.com/boca-raton-fire-alarm-services/
7. Smart Home, AV & Security Brands - Sentry Audio Video: https://sentryaudiovideo.com/brands-services-directory/
8. Commercial AV & Fire Alarms | Boca Raton, FL & NYC: https://sentryaudiovideo.com/commercial-integration/
9. Commissioning Integrated Security Systems Right - Sentry Audio Video: https://sentryaudiovideo.com/commissioning-integrated-security-systems/
10. Concierge AV, Networking & IT Service: https://sentryaudiovideo.com/concierge-av-network-it-service/
11. Concierge AV, Networking & IT Service: https://sentryaudiovideo.com/concierge-av-networking-it-service/
12. What a Control4 Dealer in Boca Raton Delivers - Sentry Audio Video: https://sentryaudiovideo.com/control4-dealer-boca-raton/
13. Estate Entrance Security Features That Matter - Sentry Audio Video: https://sentryaudiovideo.com/estate-entrance-security-features/
14. Estate Technology Maintenance Plan Palm Beach - Sentry Audio Video: https://sentryaudiovideo.com/estate-technology-maintenance-plan-palm-beach/
15. Estate WiFi Network Installation in Palm Beach - Sentry Audio Video: https://sentryaudiovideo.com/estate-wifi-network-installation-palm-beach/
16. Home Security, Cameras & Access Control | Sentry AV: https://sentryaudiovideo.com/home-security-cameras-access-control/
17. Jupiter AV, Smart Home & Security | Sentry: https://sentryaudiovideo.com/jupiter/
18. Lutron Dealer, Installation & Service in Boca Raton: https://sentryaudiovideo.com/lutron-dealer-boca-raton/
19. Luxury Home Automation Palm Beach That Performs - Sentry Audio Video: https://sentryaudiovideo.com/luxury-home-automation-palm-beach/
20. Luxury Smart Home Automation That Performs - Sentry Audio Video: https://sentryaudiovideo.com/luxury-smart-home-automation-that-performs/
21. IT Support for Boca Raton Accounting Firms: https://sentryaudiovideo.com/managed-it-support-accounting-firms-boca-raton/
22. Miami Smart Home, AV & Security: https://sentryaudiovideo.com/miami-smart-home-av-security/
23. Miami Smart Home, AV & Security - Sentry Audio Video: https://sentryaudiovideo.com/miami/
24. Ocean Ridge AV, Smart Home & Security | Sentry: https://sentryaudiovideo.com/ocean-ridge/
25. Palm Beach Gardens AV, Smart Home & Security: https://sentryaudiovideo.com/palm-beach-gardens/
26. Luxury Smart Home & Theater | Boca Raton & The Hamptons: https://sentryaudiovideo.com/residential-integration/
27. Residential IT Services & Home Technology Support: https://sentryaudiovideo.com/residential-it-services-home-technology-support/
28. Retail Technology Support South Florida: https://sentryaudiovideo.com/retail-technology-support-contract-south-florida/
29. Commercial Security Systems: https://sentryaudiovideo.com/security-systems-burglar-alarm/
30. Home Security Systems | Secure Your Property: https://sentryaudiovideo.com/security-systems/
31. Smart Home & AV Service and Repair | Sentry: https://sentryaudiovideo.com/service-repair/
32. Smart Home Control Systems | Control4, Savant & Crestron: https://sentryaudiovideo.com/smart-home-control-systems/
33. Ubiquiti UniFi Network Installation & Service in Boca Raton: https://sentryaudiovideo.com/ubiquiti-unifi-boca-raton/
34. Video Surveillance Installation | Commercial Integration: https://sentryaudiovideo.com/video-surveillance/
35. Virtual Guard Boca Raton for Smarter Security: https://sentryaudiovideo.com/virtual-guard-boca-raton/
36. Virtual Guard Services for Smarter Property Security: https://sentryaudiovideo.com/virtual-guard-services/
37. Surveillance - Sentry Security Systems: https://sentryhr.com/services/surveillance/
38. Official pricing and terms source: https://sentryaudiovideo.com/business-technology-service-plans/

Independent Sources

39. Independent search results for Sentry Audio Video (no corroborating estate-security sources found: https://www.google.com/search?q=%22Sentry+Audio+Video%22+estate+security