Perform the following steps in order to open the transmitter case:

1. Insert a small flat-bladded tool between the 2 halves of the transmitter case at the slot provided near the key ring (5) hole.
2. Twist the tool in order to open the case (6,4).
3. Remove the battery (2).

1. Install the battery (2) with the positive (+) side facing down.

Use one 3-volt CR2032 battery or the equivalent.

2. Ensure the transmitter case seal is in the proper position.
3. Align the 2 halves of the transmitter case (6,4).
4. Snap the 2 halves of the transmitter case together.

Important: Normal battery life is approximately 2 years. Replace the batteries when the range of the transmitter begins to decrease significantly to less than approximately 7 m (23 ft).

5. Test the operation of the transmitter.