Power Source Category: Smart Home Description Description 12V 7AH Battery Note: 2 batteries are used in the system Product ID: 2B 02 00 0001 Related products FW-WL – On-the-floor water leakage sensor Read more ATZ-01 Base with Insulator Read more WW-WL – Wall leakage sensor Read more EW-WL – build-in floor lekkage sensor Read more