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Battery Installation/Replacement 
These tools are shipped with the correct battery for proper function included. To access the electronics and battery 
holder:

1.

To access the compartment, use a #1 Phillips
screwdriver to 

depress the battery cover security pin.

Slide the  battery cover back to reveal the battery.

2. While inserting new battery in the battery compartment

please be sure to respect polarity requirements. 

.

3. Slide the cover back to closed. You will feel the cover

security pin close.

4. Return to work.

Please note the new raised, Fresnel provides

greater visibility from almost all angles. 

       The A3 Radio Board Shown to the Right.

P/N 857331 B Revised 6/30/15

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