• Thermal Imagers

Thermal Imagers

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Offers sharp, crisp, detailed, commercial quality images every time, right out of the box with the widest lens (34 x 26 ) available.

Stack this up with the easy 1-button control and you have a technologically advanced, well thought-out thermal imaging solution for Commercial Contractors, Facility Managers and Energy Auditors.

The Testo 870 balances features and performance in an easy-to-use small, compact design.

  • Sharp, crisp images every time
  • Easy 1-Button control
  • Widest lens available


Product dataTesto 870-1Testo 870-2
Ordering number0560 87010560 8702
Image output - Infrared
Infrared resolution160 x 120 pixels
Pixel resolution19,200
Thermal sensitivity (NETD)<100 mK at 86°F
Digital cameraNAYes 3.1 MP
Field of view34° x 26°
Optimized fixed focus19 inches to ∞
Geometric resolution (IFOV)3.68 mrad
SuperResolution - Optional Upgrade320 x 240
SuperResolution Pixels76,800
Image refresh rate9 Hz
Spectral range7.5 ... 14 μm
Image presentation
Image display3.5" LCD with 320 x 240 pixels
Display optionsIR imageIR image / real image
Fullscreen modeYes
Video outputUSB 2.0
Color palettes4 (Iron, rainbow hc, blue-red, grey)
Temperature range-4° to 536° F or -20° to 280° C
Accuracy+/-2% of reading
Emissivity0 to 1
RTC (reflected temperature compensation)Manual input
Measuring functions
Analysis functionsCenter point, Hot-/Cold-Spot-recognition
Image storage
File format - standard.bmt and .jpg
IR - JPEG in cameraYes
File format export.bmp, .jpg, .png, .csv, .xls
Storage deviceinternal memory (1.6 GB / > 2.000 pictures)
Power supply
Battery typefast-charging, Li-ion battery can be changed on-site
Operating time4 hours
Charging optionsin instrument / in charger (optional)
Ambient conditions
Operating temperature range5°F to 122°F
Storage temperature range-22° F to 140°F
Air humidity20 % ... 80 % non-condensing
Housing protection class (IEC 60529)IP 54
Vibration (IEC 60068-2-6)2G
Physical features
Weight1.2 lbs. / 550 g
Dimensions (L x W x H) in mm219 x 96 x 95
HousingPC - ABS
PC software
System requirementsWindows XP (Service Pack 3),Windows Vista,
Windows 7, Windows 8
Interface: USB 2.0
Standards, tests, warranty
EU Directive2004 / 108 / EG
Warranty2 years