- 113 - GD-70D
4. Pry the sensor unit lid off of the sensor unit body.
5. Remove the circuit board. Be very careful not to damage the white connector.
6. Remove the old battery.
7. Install a new battery.
8. Reinstall the circuit board being careful not to damage the white connector.
9. Reinstall the sensor unit lid to the sensor unit body.
10. Insert the sensor unit into the main unit and make sure that the sensor unit is secured.
11. Close the front cover. Be sure the front cover clicks into place.
12. Turn the power to the GD-70D back on.