HTI HT-A3 product image

HTI HT-A3

The HT-A3 is a thermal monocular made by HTI and is part of the HT-A series.

Description

The HT-A3 contains a crisp 25mm objective lens focusing the available thermal radiation. The field of view on this thermal monocular is 14.9 by 11.2 degrees. It features a 4 times digital zoom to enlarge your subject.

Behind the lens of the HT-A3 you can find the (uncooled, 17 micrometer) 384 x 288 pixels thermal core refreshing the image at 50Hz. The thermal contrast (NETD) of this thermal monocular is <50mK and it's operating within the 8µm to 14µm infrared spectrum.

The physical dimensions of this thermal monocular read 186 x 69 x 68mm (lwh) weighing in at 440 grams. This device is rated IP66. It handles dust, shocks and water (splashes).

The HT-A3 is built to be used in scanning and surveillance, hunting adventures, police operations and search and rescue.

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Features

  • Available with 3 lens options; 19mm, 25mm (default), 35mm
  • Long battery life (Up to 6 hours)
  • 50Hz refresh rate
  • Video-out to external screen (Optional)
  • On-board picture storage

Specifications

Lens25 mm
Digital zoom4 x
FOV (h/v)14.9 ° / 11.2 °
Thermal typeUncooled
Sensor resolution (h/v)384 pixels / 288 pixels
Pixel pitch17 µm
Sensitivity50 mK
Spectral range8 µm / 14 µm
Display resolution (h/v)1024 pixels / 768 pixels
Refresh rate50 Hz
Image polarityWhite hot, black hot, iron red, rainbow
Output screen colorFull color
Startup time3 seconds
Dimensions (l/w/h)186 mm / 69 mm / 68 mm
Weight440 g
TypeLithium-ion
Number of batteries1
Battery life6 hours
Replaceable
Surveillance
Hunting
Law enforcement
Search & rescue
Military
Fire fighting
Thermography
Dustproof
Shockproof
Waterproof
Submersible
Storage temperature-20 °C / 60 °C
Environmental ratingIP66

DRI Ranges

DRI stands for Detection, Recognition and Identification and is based on the widely used Johnson's criteria.

  • Detection Detect if an object is present
  • Recognition See what type of object it is (i.e. person, vehicle, airplane)
  • Identification For example see if someone is a friend or foe
Detection Recognition Identification
Rabbit 264 meters 66 meters 33 meters
Person 931 meters 232 meters 116 meters
Vehicle 2254 meters 563 meters 281 meters

Please note that these values are calculated, always consult the manufacturer for official range numbers.

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