Night Optics USA Explorer 400 product image

Night Optics USA Explorer 400

The EXPLORER 400 is a thermal monocular made by Night Optics USA.


The Explorer 400 features a crisp 19mm objective lens focusing the available thermal radiation. The field of view on this thermal monocular is 28.3 by 21.4 degrees. It features a 4 times digital zoom to enlarge your subject.

Behind the lens of the Explorer 400 you can find the (uncooled, 25 micrometer) 400 x 300 pixels thermal core refreshing the image at 50Hz. It's operating within the 8µm to 14µm infrared spectrum.

The physical dimensions of this thermal monocular read 160 x 67 x 62mm (lwh) weighing in at 350 grams. This device is rated IP66. It handles dust, shocks and water (splashes). It's rated for operating in temperatures between -10°C and 60°C.

The Explorer 400 is built to be used in scanning and surveillance, hunting adventures, police operations and search and rescue.


  • New 400x300 Resolution Sensor
  • Wifi Enabled
  • Image Capture
  • 8gb Internal Storage
  • Video Out
  • Live Object Tracking
  • LED Map Light
  • Long Battery Life
  • Tripod Mountable
  • Compatible with 3x Germanium lens
  • USB Cable for Charging and Data Transfer
Lens19 mm
Diopter adjustment+5 - 5
Optical zoom1 x
Digital zoom4 x
FOV (h/v)28.3 ° / 21.4 °
Thermal typeUncooled
Sensor resolution (h/v)400 pixels / 300 pixels
Pixel pitch25 µm
Spectral range8 µm / 14 µm
Display resolution (h/v)640 pixels / 480 pixels
Refresh rate50 Hz
Image polarityBlack Hot / White Hot / Red hot
Output screen colorFull color
Video formatsPAL/ NTSC
Package contentsThermal Camera, Lens Cap, Wrist Lanyard, Padded Neck Lanyard, USB Cable, Wall Charger, Padded Neck Lanyard, Video Out Cable, Rubber Eyecup, Soft Drawstring Pouch, Operator Manual
Dimensions (l/w/h)160 mm / 67 mm / 62 mm
Weight350 g
Type3.7v 3500mAh Li-ion
Number of batteries1
Battery life8 hours
Law enforcement
Search & rescue
Fire fighting
Operating temperature-10 °C / 60 °C
Storage temperature-30 °C / 60 °C
Environmental ratingIP66


Night Optics Explorer 400 (LED)
Night Optics Explorer 400 (LED)
Night Optics Explorer 400 (LED)
Night Optics Explorer 400 (LED)
Night Optics Explorer 400 (LED)
Night Optics Explorer 400 (LED)
Night Optics Explorer 400 (LED)