1) Turn off the meter power and remove the probes.

2) Remove the screw fixing the battery cover and remove the battery cover.

3) Remove the old battery and replace it with a new one of the same specification. Please pay attention to the battery polarity.

4) Install the battery cover back to its original position, and fix and lock the battery cover with screws.

GVDA Digital Multimeter True RMS AC DC Ohm Hz Diode Capacitance Tester Smart Voltage Meter 6000 Counts Digital Multimetro GD119B: