Speco HT5940TMB 2MP HD-TVI IR Dome 2.8-12mm

Speco Technologies HT5940TMB 2MP HD-TVI IR Dome Camera

Overview

The Speco Technologies HT5940TMB is a 2MP HD-TVI fixed dome camera designed for outdoor surveillance deployments requiring reliable infrared night vision and motorized zoom capability. This camera delivers 1920x1080 resolution at 30 fps with a 2.8–12mm motorized lens, enabling adjustable field of view without lens replacement. The HT5940TMB includes a junction box for simplified installation and features true day/night operation with 66-foot infrared illumination range, making it suitable for perimeter security, facility monitoring, and wide-area coverage applications.

When this is the correct choice

The HT5940TMB is the right choice when you need a weatherproof outdoor dome camera with motorized zoom flexibility and native infrared capability. It is ideal for integrators specifying fixed-position cameras that require field-adjustable zoom without lens swaps, particularly in environments with no external lighting. The IP67 rating and operating temperature range of −4°F to 122°F make it suitable for rooftop, soffit, and exterior wall mounting in temperate to warm climates. HD-TVI architecture ensures compatibility with cost-effective analog hybrid recorders and simplifies wiring in existing analog or hybrid surveillance infrastructure.

When to choose a different model

If your deployment requires pan/tilt/zoom motion control, select a PTZ camera instead. If you need higher than 2MP resolution, consider 4MP or higher-resolution HD-TVI or IP alternatives. If your site is in extreme cold environments below −4°F, verify compatibility with application-specific heating or enclosure solutions. For applications requiring edge analytics, facial recognition, or onboard intelligent video processing, evaluate cameras with built-in AI or deep learning processors.

Optics and field of view

The motorized 2.8–12mm varifocal lens provides a 4.3x zoom range, enabling flexible field-of-view configuration across a single camera mounting point. At 2.8mm, the lens delivers a wider angle suitable for corridor or lobby monitoring; at 12mm, it narrows the field of view for targeted perimeter or entrance surveillance. Motorized focus allows remote zoom adjustment from the recorder or control interface, eliminating the need for on-site lens adjustment after installation.

Imaging performance and low light

The 1/3" CMOS sensor captures 2MP (1920x1080) video at 30 frames per second in both day and night modes. True Day/Night operation automatically switches between color and monochrome based on ambient light levels, optimizing contrast and detail in low-illumination conditions. The camera features true WDR (Wide Dynamic Range) processing, which compresses the tonal range to reveal detail in both bright highlights and dark shadows—critical in scenes with mixed lighting, reflective surfaces, or backlit scenarios. Native infrared illumination extends visibility to 66 feet in complete darkness, enabling night surveillance without external lighting infrastructure.

Analytics and edge capabilities

The HT5940TMB includes motion detection analytics at the edge, allowing the camera to trigger recording or alarm events based on detected motion within configurable zones. This reduces bandwidth consumption and storage overhead by enabling selective recording triggered by activity rather than continuous archival.

Video encoding and streaming

As an HD-TVI camera, the HT5940TMB transmits compressed video over standard coaxial cable directly to HD-TVI recorders. This architecture avoids IP network overhead and is compatible with hybrid surveillance systems that combine analog, HD-TVI, and IP devices on the same recorder platform.

Network and security

The HT5940TMB uses HD-TVI transmission, which does not require network connectivity or IP configuration. This eliminates common cybersecurity vectors associated with networked cameras, including credential exposure, protocol exploitation, and lateral network movement. No ONVIF, RTSP, or cloud connectivity is available or necessary for this model.

Environmental and durability ratings

The camera carries an IP67 rating, certifying protection against dust ingress and immersion in up to 1 meter of fresh water for 30 minutes. This rating ensures reliable operation in rain, spray, and temporary flooding scenarios. The operating temperature range spans −4°F to 122°F (−20°C to 50°C), supporting deployment in mild-to-warm climates. The camera housing is finished in dark black, reducing glint and improving aesthetic integration into dark architectural surfaces.

Power and installation notes

The HT5940TMB operates on DC 24V power, supplied via standard 2-conductor power cable run alongside coaxial video cable. The included junction box simplifies field wiring by consolidating power and video connections at the camera head, reducing exposed terminals and improving weather resistance at the cable entry point. Total system power draw is minimal, allowing operation from small 24V power supplies or centralized power distribution units common in surveillance installations. The camera weighs 3 pounds, making it manageable for ceiling or wall mounting by a single installer.

What is included

• Speco Technologies HT5940TMB camera head
• Junction box

Marty Allison

I have specified the Speco HT5940TMB in several recent outdoor facility surveillance designs where budget and infrastructure constraints ruled out full IP deployment. The motorized 2.8–12mm lens is the standout feature—it eliminates the need to stock multiple fixed-lens options or send a technician back to site for zoom adjustment. Paired with the included junction box, it reduces installation friction considerably.

Technical Highlights:

• Motorized zoom without re-mounting: The 2.8–12mm varifocal lens allows field technicians to optimize framing from the recorder interface, critical when ceiling or high-wall mounting makes physical adjustment impractical.
• True WDR and native IR: The combination of wide dynamic range and 66-foot infrared throw handles challenging mixed-light perimeter scenarios—parking areas, loading docks, and transitional zones between lit and unlit sections.
• IP67 durability: Rated for rain and immersion, the camera tolerates sprinkler spray, seasonal condensation, and roof-edge or soffit mounting without additional weatherproofing enclosures.

Deployment Considerations:

• Confirm your HD-TVI recorder supports motorized lens control if remote zoom adjustment is required. Some entry-level hybrid recorders do not expose lens commands to the user interface.
• Plan 24V power distribution carefully—the camera draws modest current, but runs on low-voltage DC, so voltage drop over long cable runs can degrade image quality. Keep 24V supply lines to 300–400 feet maximum.

For integrators working with existing analog or hybrid infrastructure, the HT5940TMB is a straightforward upgrade path that adds motorized zoom and native infrared without forcing a complete system architecture redesign. The included junction box is a nice touch that saves field time and improves reliability.