The Mini Door / Window Sensor is our smallest sensor that we offer. The sensor uses abodeRF for a very long range and enhaabode's Mini Door / Window Sensor is our smallest sensor that we offer. The sensor uses abodeRF for a very long range and enhanced battery life. The sensor can be easily installed and detects whether a door or window is opened based on the position of the included magnet. Battery life under normal operation is expected to be 4 years and the abode system will alert you if the battery is getting low and needs to be replaced. The sensor includes a 3V, CR2450 Lithium Battery. The Mini Sensor is 2 1/16″ long, 1 1/8″ wide, and 3/8″ thick and comes in classic white.nced battery life. The sensor can be easily installed and detects whether a door or window is opened based on the position of the included magnet. Battery life under normal operation is expected to be 4 years and the abode system will alert you if the battery is getting low and needs to be replaced. The sensor includes a 3V, CR2450 Lithium Battery. The Mini Sensor is 2 1/16″ long, 1 1/8″ wide, and 3/8″ thick and comes in classic white.