TESTO 205 - 3 Product Description; Display and Control Elements; Power

3. Product Description
3.1 Display and control elements
3.2 Power
Power is via four button cells (Type LR44, included with delivery).
MODE:
change function
ON/HOLD:
On/Off switch,
holds readings
Battery com-
parment
CAL: Calls up “calibration”
mode
Display
3. Product Description20
Probe socket with
screw ring
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