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Global Specialties
8
Battery Replacement and Indicator
Remove the battery cover from the back, and insert a 9 V battery.
The onboard display will indicate when the battery needs to be
replaced.
Calibration
1. First ensure that the device is turned off. Then press and
hold . Next, press the power button and release both.
The meter will display a flashing “CAL 94 dB”.
2. Gently insert the microphone housing into the calibrator* as
depicted below.
3. Press or to increase or decrease the number
displayed until it matches the value 94.0 dB
4. Press to finish calibration. To abort the process, press
the power button to cancel.
Batteries Good
Batteries Partly Depleted
Replace Batteries
9 V battery
*GNV-102 sound level callibrator sold separately