Check out our extended review of the LM6P thermal monocular!
LMIR LM640 35mm product image
Type: Monocular
Resolution: 640 x 512 pixels
Brand: LMIR

LMIR LM640 35mm

The LM640 35MM is a thermal imaging monocular made by LMIR. It utilizes a 640 x 512 pixels thermal core with a refresh rate of 30Hz and features a 35mm lens, giving you a field of view of 18 x 15 degrees.

Based upon the success of the LM6P models, LMIR has produced its most powerful device to date. Featuring a sensetive 640 x 512 pixels VOx (Vanadium Oxide) sensor bundled with a sharp 35mm F1.0 lens this device gives you the ability to see further and in more detail then ever before.

The LM640's durable body can withstand dust, water, shocks and can operate in a wide range of temperatures for more then 5 hours without the need to recharge.


  • 640 x 512 pixels VOx sensor
  • 35mm aspherical F1.0 lens
  • WiFi streaming
  • Video recording
  • Laser pointer
  • Stadiametric rangefinder
  • Waterproof
  • Extended battery life

LM640 35mm Specifications

Lens35 mm
Optical zoom1 x
Digital zoom4 x
FOV (h/v)18 ° / 15 °
Focus range> 2m to infinity
Thermal typeUncooled
Sensor resolution (h/v)640 pixels / 512 pixels
Pixel pitch17 µm
Sensitivity40 mK
Spectral range8 µm / 14 µm
Display resolution (h/v)1024 pixels / 768 pixels
Refresh rate30 Hz
Image polarityBlack hot, white hot, cold red, red hot
Output screen colorFull color
Startup time10 seconds
Package contentsInstruction manual, Lanyard, Carrying bag, Cleaning cloth, USB Charger, (Micro) USB Cable
Dimensions (l/w/h)191 mm / 70 mm / 73 mm
Weight490 g
Number of batteries1
Battery life5 hours
Law enforcement
Search & rescue
Fire fighting
Operating temperature-40 °C / 60 °C
Environmental ratingIP67


LM40 Brochure
5.43 mb
Manufactured by LMIR
LMIR specializes in thermal imaging R&D, production and sales. LMIR provides clients with a full set of thermal imaging solutions . With more than 10 years experience in the field LMIR is has become a trusted name within the thermal imaging industry.
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