IRtech S750M product image

IRtech S750M

The S750M is a thermal bi-ocular made by IRtech.


The S750M houses a clear 61mm f/0.8 objective lens collecting thermal radiation. The default field of view on this thermal bi-ocular measures 9 by 6.75 degrees.

Behind the lens of the S750M you can find the (uncooled, 25 micrometer) 384 x 288 pixel microbolometer refreshing the image at 50Hz. The NETD of this thermal bi-ocular is <80mK and it's operating within the 8µm - 14µm infrared wavelengths.

The measurements of this thermal bi-ocular read 265 x 210 x 105mm (l/w/h) and the scale reads 2500 grams. This device is rated IP67. It's protected against dust, shocks and water (splashes). It handles temperatures between -20°C and 50°C.

The S750M can be utilized in surveillance, law enforcement (police, border patrol etc.), SAR (Search and Rescue) operations and tactical operations.



  • 384×288 uncooled FPA
  • Laser range finder up to 2km
  • GPS module
  • Electronic compass
  • High quality 61 mm F/0.8 optics
  • 50Hz frame rate
  • Records images & video
  • Dual OLED screens
  • IP67 rating
  • USB connectivity


Lens61 mm
Optical zoom2 x
FOV (h/v)9 ° / 6.75 °
Thermal typeUncooled
Sensor resolution (h/v)384 pixels / 288 pixels
Pixel pitch25 µm
Sensitivity80 mK
Spectral range8 µm / 14 µm
Display resolution (h/v)800 pixels / 600 pixels
Refresh rate50 Hz
Image polarityBlack Hot / White Hot
Output screen colorFull color
Video formatsCCIR/PAL
Dimensions (l/w/h)265 mm / 210 mm / 105 mm
Weight2500 g
Number of batteries1
Battery life3 hours
Operating temperature-20 °C / 50 °C
Storage temperature-40 °C / 60 °C
Environmental ratingIP67
Law enforcement
Search & rescue
Fire fighting

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 439 meters 109 meters 54 meters
Person 1545 meters 386 meters 193 meters
Vehicle 3741 meters 935 meters 467 meters

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


Dali Tech S750M
Dali Tech S750M