b) Display
A
B
C
D
E
F
G
A Optical power
B Calibration
C Auto OFF enabled
D Optical laser status
E Wavelength
F Battery level
G Units
9. Insert battery
1. Remove the compartment cover screws using a cross head screwdriver.
2. Insert 3x AA batteries matching polarities as indicated inside the compartment.
3. Replace the compartment cover.
The battery status indicator shows the level of charge.
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