1: Activation of the LASER
2: Reference level (front)
3: Reference level (back)
4: Reference level (offset)
5: Continuous measurement
6: Error message
2. DESCRIPTION
1: Switching on / Activation of LASER / Measurement
2: Area / Volume
3: Continuous measurement
4: Addition / Subtraction
5: Measurement log
6: Measurement reference
7: Backlighting / Units
8: Clear / Stop
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