Speco Technologies HT471TG 4MP HD-TVI Mini IR Turret Camera
Overview
The Speco HT471TG is a compact 4MP HD-TVI turret camera engineered for integrators upgrading analog surveillance infrastructure to higher resolution without replacing existing coaxial cabling. This model combines a fixed 2.9mm wide-angle lens with integrated infrared illumination in a grey turret housing, delivering straightforward surveillance for hallway monitoring, lobby coverage, and perimeter entry points. The HT471TG transmits video over the HD-TVI digital protocol — a coaxial standard that requires no IP network, no encoder, and no network management overhead. It is particularly suited to facilities with established baseband cabling infrastructure and hybrid or TVI-based DVR systems.
Key Features
- 4MP (2560 × 1920) resolution: Captures enough detail for facial recognition and object identification at typical surveillance distances (10–25 feet), eliminating the need for secondary close-up cameras in many indoor deployments.
- Fixed 2.9mm lens with wide field of view: Covers broad areas without dead zones — effective for entry control, hallway monitoring, and perimeter sweeps where motorized zoom is not required. Focus is set at installation and does not drift.
- Integrated 850nm infrared LED array with automatic day/night switching: Provides usable monochrome video in complete darkness without external lighting infrastructure. Infrared activation is automatic; no manual intervention needed during shift changes or seasonal transitions.
- HD-TVI transmission over coaxial cable: Leverages existing RG59 or RG6 infrastructure, eliminating the cost and labor of running Cat5e/Cat6 cabling. Maximum transmission distance typically reaches 300 feet with standard coaxial runs; longer distances require inline amplification.
- Compact turret form factor with grey housing: Measures roughly 3.5 inches in diameter, allowing discrete ceiling or wall mounting in retail, office, and warehouse environments where low visual profile is preferred. The turret design permits flexible aiming without reorienting the entire mount.
- Passive analog device — no embedded analytics: Reduces per-camera cost and eliminates firmware management overhead. All motion detection, event filtering, and alerting occur at the DVR or hybrid recorder. This architecture suits deployments where centralized video management is already in place.
- TAA-compliant manufacturing: Meets federal procurement requirements (Buy American Act, FAR clause 52.225-1) for government contracts and sensitive institutional work.
When This is the Correct Choice
Deploy the HT471TG when you are upgrading from 960H or 1080p analog cameras and coaxial cabling is already in place. The model is cost-effective for broad-area monitoring in hallways, lobbies, and perimeter zones where fixed wide-angle coverage is sufficient. Organizations prioritizing federal compliance or government procurement will benefit from TAA eligibility. Integrators supporting DVR and hybrid recorder systems with TVI input ports can leverage this camera without adding IP infrastructure or network management complexity.
When to Choose a Different Model
If your deployment requires IP-based streaming, remote viewing, or cloud integration, select an IP camera instead. For applications demanding motorized zoom, PTZ pan-and-tilt, or variable focal length, choose a varifocal or PTZ model from the Speco line. If extended infrared range beyond 30 meters is essential, evaluate higher-sensitivity or thermal imaging models. Organizations with stringent cybersecurity policies requiring encrypted transmission, signed firmware, or network authentication should assess IP cameras with those capabilities, as the HT471TG lacks network-layer security.
Integration and Compatibility
The HT471TG connects to any HD-TVI DVR or hybrid recorder with HD-TVI input ports. Standard BNC connectors and 12VDC power inlet are industry-standard; no proprietary connectors or passive baluns are required. Transmission is point-to-point over coaxial cable; no IP network or switch integration is needed. This simplifies installation but also means video cannot be streamed to a mobile app, VMS, or cloud service independent of the DVR system.
Technical Characteristics
Resolution is 4MP at 30 fps maximum. The 2.9mm fixed lens delivers approximately 110° horizontal field of view. Day/night operation relies on automatic IR switching; no separate control mode is provided. Infrared illumination distance is rated to approximately 30 meters under ideal conditions. Operating temperature range is −10°C to 50°C, supporting both indoor climate-controlled spaces and outdoor installations in temperate regions. Housing is rated for both indoor and outdoor mounting; exact environmental rating (IP/IK) should be verified against the detailed datasheet or specification sheet provided by the manufacturer or your distributor.
Frequently Asked Questions
Q: Is the HT471TG TAA-compliant for federal procurement?
A: Yes. The HT471TG meets TAA requirements and is eligible for federal contracts and Buy American Act compliance.
Q: Can I use the HT471TG with an IP-based VMS like Milestone XProtect or Axis Camera Station?
A: No. The HT471TG is an analog HD-TVI device and does not support ONVIF, IP streaming, or network integration. It requires a TVI-compatible DVR or hybrid recorder for video management.
Q: What is the maximum coaxial cable run for the HT471TG?
A: Typical installations support runs up to 300 feet without signal conditioning. Longer distances require inline amplification or active baluns.
Q: Does the HT471TG support motorized focus or zoom?
A: No. The 2.9mm lens is fixed focal length and fixed focus. Focus is set manually during installation.
Q: What is the infrared range of the HT471TG?
A: Integrated 850nm IR illumination provides usable monochrome video out to approximately 30 meters under optimal conditions. Actual range depends on target reflectance and ambient light bleed.
Q: Is there a warranty or support plan available?
A: Warranty terms and support options should be confirmed with your specialty retailer or distributor, as these vary by region and purchase channel.
James EverettPerspective based on aggregated IP Security Depot and affiliated engineering team experience.
The HT471TG is a no-nonsense coaxial camera for integrators who need to squeeze 4MP resolution out of existing baseband infrastructure. If your customer has already run RG59 or RG6 and owns a TVI-capable DVR, this turret eliminates the engineering overhead of a full IP migration — you get 30% more resolution than 1080p analog at a fraction of the cost of an IP system plus PoE switch.
Technical Highlights:
- 4MP over coaxial cable: Delivers 2560 × 1920 resolution without adding Cat5e/Cat6 cabling labor. That 4MP payload means adequate detail for facial recognition at typical hallway distances (10–20 feet) — meaningful when you're trying to reduce the number of cameras per zone.
- Fixed 2.9mm wide-angle lens: Covers broad areas without dead zones. No motorized focus drift, no autofocus hunting. You set it at install and walk away.
- Integrated 850nm IR with automatic day/night: Infrared activation happens automatically; no manual switching or relay wiring. Monochrome video to 30 meters is adequate for perimeter entry monitoring and warehouse loading zones where you need coverage but not forensic detail in darkness.
- TAA-compliant: Meets federal procurement rules — a real advantage if your customer is a government agency, university, or vendor serving public sector contracts.
Deployment Considerations:
- Maximum cable run of 300 feet assumes good coaxial infrastructure. Longer runs need inline amplification — budget for that upfront or you'll get called back to troubleshoot signal loss.
- Zero embedded analytics. All motion detection and alerting happens at the DVR. If your customer wants object detection or people counting, that processing occurs on the recorder side, not on the camera. Make sure the DVR or hybrid system supports it.
- No network connectivity — this is a strength if cybersecurity is tight (no remote exploit vector) but a limitation if the customer later wants mobile app access or cloud archiving independent of the DVR. Plan accordingly during requirements gathering.
The HT471TG is the right fit for analog-to-TVI upgrades in facilities with solid baseband infrastructure and no requirement for IP network streaming or cloud integration. Warehouse, retail, and hallway surveillance where broad coverage matters more than PTZ flexibility — that's where this turret earns its place.
