Follow the steps for usage Wireless Driveway Alert 1. Place the correct batteries in the detector 2. Make sure that the batteries have been put in the proper positions.
Never worry about surprise visitors again with our Wireless Driveway Alert. This easy to use and set up, wireless Infrared Motion Sensor Door Bell Alarm includes 1 Receiver and
Attention: 1, Please use good quality alkaline batteries, avoid using less electricity and electrolyte leakage ordinary carbon battery. 2, Non-professional workers do not repair without authorization. 3, Please avoid