TESTO 835 User Manual

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5. Product description
1 Infrared sensor (IR) lens
2 4-point laser for measurement spot marking
3 Ambient humidity probe, ambient temperature probe (only H1)
4 Trigger (measurement, switching on)
5 Battery compartment
6 USB interface, probe connector socket for thermocouple probe (TC)
7 Control keys:
· []: Switch instrument on/off
· []: Save measuring values
· []: Open Emissivity menu
· [Esc]: Back
· []: 5-way joystick (press , up , down , left , right ): Open
configuration menu, confirm entry, navigate
8 Display
155. Product description

TESTO 835 Specifications

General

Emissivity	0.1 to 1.0 adjustable
Resolution	0.1 °C
Spectral Range	8 to 14 µm
Temperature Range	-30 to +500 °C
Optics	50:1
Response Time	500 ms