2 Technical data
5
1.3 Waste disposal
• Dispose of faulty rechargeable batteries and spent batteries in accordance
with the valid legal specifications.
• At the end of its useful life, dispose of the instrument via separate collection
for electrical and electronic devices. Please observe local regulations
regarding waste disposal, or alternatively return the product to Testo for
disposal.
2 Technical data
Image output
Feature Values
Infrared resolution 160 x 120 pixels (FPA, amorphous silicon)
Thermal sensitivity (NETD) <100 mK @ 30 °C
Field of view (FOV) / min.
focusing distance
34° x 26°/ < 0.5 m (fixed-focus lens)
Geometric resolution (IFOV) 3.68 mrad
SuperResolution (optional
function)
320 x 240 pixels / 2.3 mrad
IR image refresh rate 9 Hz
Spectral range 7.5 - 14 µm
Image presentation
Feature Values
Display 8.9 cm (3.5") TFT, QVGA (320 x 240 pixels)
Display options
• Infrared image
• Real image (only for testo 870-2)
Interface USB 2.0 micro B
Colour palettes 4 options: iron, rainbow HC, grey, cold-hot
Measuring
Feature Values
Measurement range -20 to 280 °C
Accuracy Information valid for specified measurement
range + tolerance
±2 °C , ±2 % of reading (higher value applies)
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