Speco Technologies HT5940TM 2MP HD-TVI IR Dome Camera 2.8-12mm

Speco Technologies HT5940TM 2MP HD-TVI IR Dome Camera

Overview

The Speco Technologies HT5940TM is a 2MP HD-TVI infrared dome camera designed for fixed surveillance deployments requiring motorized lens control and reliable low-light imaging. This model combines a 1/3" CMOS sensor with a 2.8-12mm motorized varifocal lens, enabling flexible field-of-view adjustment without dismounting. The HT5940TM delivers 1920x1080 resolution at 30 frames per second, making it suitable for general monitoring, retail, and facility surveillance where cost-effective HD imaging and remote focus adjustment are priorities.

When this is the correct choice

Select the HT5940TM when you need a fixed-dome camera with motorized lens capability in an outdoor or semi-outdoor environment. This camera is well-suited to installations where:

• Lens adjustment after installation is required without physical access to the camera
• Budget-conscious HD-TVI surveillance is preferred over higher-resolution IP alternatives
• Environmental protection (IP67 rating) and 24V DC power infrastructure are already in place
• Infrared illumination up to 66 feet supports night-time or low-light monitoring
• True day/night operation and wide dynamic range (WDR) are required

When to choose a different model

Do not select the HT5940TM if you require: IP network connectivity and ONVIF compliance; higher than 2MP resolution; PoE power delivery; thermal imaging; pan-tilt-zoom (PTZ) capability; or audio input. For HD-TVI surveillance requiring fixed focal lengths or higher resolution, evaluate fixed-lens alternatives. For networked, enterprise-grade deployments, consider IP camera platforms.

Optics and field of view

The integrated 2.8-12mm motorized varifocal lens provides variable field-of-view capability, allowing you to adjust magnification remotely via the camera's control protocol. This range supports both wide-area coverage (2.8mm) and targeted monitoring (12mm), accommodating installation in spaces where fixed focal lengths may be limiting. The motorized design eliminates the need for on-site manual focus adjustment, reducing installation time and support calls.

Imaging performance and low light

Operating with a 1/3" CMOS sensor, the HT5940TM captures 2MP (1920x1080) video at 30 fps in full daylight and low-light conditions. True day/night functionality with integrated infrared illumination enables surveillance in complete darkness. The built-in IR LEDs deliver 66 feet of illumination range, supporting perimeter and facility monitoring without external lighting. True Wide Dynamic Range (WDR) balances exposure across scenes containing both bright and dark areas, critical for outdoor deployments with mixed lighting conditions such as doorways and windows.

Analytics and edge capabilities

The HT5940TM includes motion detection analytics, enabling the camera to flag activity for recording or alarm triggering. This feature reduces false alerts and storage overhead by enabling event-driven recording workflows in surveillance systems that support motion-triggered activation.

Video encoding and streaming

As an HD-TVI camera, the HT5940TM encodes video directly to HD-TVI format for transmission over coaxial cable to compatible HD-TVI DVR equipment. This architecture eliminates the need for network infrastructure while maintaining HD resolution and real-time performance. Consult your DVR manufacturer's specifications for compatible recording and playback frame rates.

Network and security

The HT5940TM does not include IP networking, ONVIF, or web-based management interfaces. Video and control signals are transmitted via coaxial cabling to an HD-TVI DVR. Security relies on DVR-level access control and physical cable security. Ensure your DVR platform is updated and hardened per manufacturer recommendations.

Environmental and durability ratings

Rated IP67, the HT5940TM withstands dust ingress and submersion in water up to 1 meter for 30 minutes, making it suitable for outdoor mounting on building exteriors, covered structures, and semi-exposed facility locations. Operating temperature range is -4°F to 122°F (-20°C to 50°C), supporting temperate climates. The dark grey dome housing blends into most architectural settings. Weight is 3 lbs, accommodating standard ceiling and wall mount hardware.

Power and installation notes

The HT5940TM operates on 24V DC power, which must be supplied by a compatible power supply unit capable of delivering sufficient current for the infrared LEDs and motorized lens mechanism. A junction box is included with the camera to facilitate wiring. Run 24V DC power and coaxial video cabling from your HD-TVI DVR or hub to the camera location, observing maximum cable run distances specified by your DVR manufacturer. Motorized lens control is commanded through the DVR interface; consult your DVR manual for focus and zoom control procedures.

What is included

• Speco Technologies HT5940TM camera head
• 2.8-12mm motorized varifocal lens
• Junction box
• Mounting hardware (standard dome mount)

Ted Perry

I've evaluated the HT5940TM in several fixed outdoor surveillance projects, and it remains a dependable choice for HD-TVI installations where remote lens adjustment is required. The motorized 2.8-12mm lens eliminates the need to physically access the camera after installation, which saves time during commissioning and reduces support overhead when field-of-view refinement is needed. The 66-foot IR range and true WDR handle most outdoor facility scenarios without supplemental lighting.

Technical Highlights:

• Motorized Lens Control: Remote focus and zoom adjustment via DVR without camera access, reducing installation iterations and field calls.
• IP67 Durability: Full dust and submersion protection for outdoor, covered, and semi-exposed mounting; -4°F to 122°F operating range accommodates temperate and cold climates.
• 66ft IR and True WDR: Infrared illumination and wide dynamic range balance high-contrast lighting common in perimeter and entrance monitoring.

Deployment Considerations:

• Confirm your HD-TVI DVR supports motorized lens control commands; not all DVR platforms expose this interface equally.
• Size your 24V DC power supply generously; IR LEDs at full intensity draw significant current, and undersizing causes focus/zoom drift.
• Plan cable runs conservatively; coaxial cable distance limits vary by DVR and quality—test long runs with your specific hardware.

The HT5940TM remains a pragmatic workhorse for budget-conscious outdoor HD-TVI deployments. Its motorized lens, IP67 rating, and included junction box reduce installation friction. If your workflow is HD-TVI and you need flexible field-of-view without on-site adjustment, the HT5940TM delivers solid value.