How long do the batteries last in my Garage Door Sensor?

This Garage Door Sensor takes 1 CR123A batteryand the typical battery life for the sensor is 3-5 years. If the Garage Door Sensor reports a low battery, follow these steps to change the battery: 

•  To open the sensor, press in on the plastic above the protrusion on one of the two short ends to open the cover and reveal the battery.
• Pop the CR123A battery out of the compartment and replace it with the new batteries positive end facing towards the spring.
• To replace the sensor cover on the base, put the bottom of the sensor together first and fold it closed. You should hear the casing snap into place.

This Garage Door Sensor takes 1 CR123 batteryand the typical battery life for the sensor is 3-5 years. If the Garage Door Sensor reports a low battery, follow these steps to change the battery: 

• To open the sensor, remove the screw securing the back cover with a small Philips head screwdriver, and then remove the cover to reveal the battery.
• Pop the CR123A battery out of the compartment and replace with positive end facing towards the circuit board.
• Once complete, replace the sensor cover back on its base and replace the screw in the bottom to screw the cover back on.

This Garage Door Sensor takes 1 CR2032 battery and the typical battery life for the sensor is 3-5 years. If the Garage Door Sensor reports a low battery, follow these steps to change the battery: 

• To open the sensor, insert a tool in the indentation along long side and pry to remove the cover from transmitter
• Pop the CR2032 battery out of the compartment and replace with positive end facing up.
• Once complete, place the cover back on the sensor. It is important the cover goes back on the same way it came off. On the inside of the cover there is a small plastic piece that you want to align with the black button on the inside of the sensor.