Wireless Home Anti-theft Door and Window Sensor Magnetic Burglar Security Alarm System with Two Remote Control
This post contains affiliate links. As an Amazon Associate I earn from qualifying purchases Specification Alarm volume: 110dB Host Battery: 2 * AAA alkaline battery operation (not included) Remote control battery: 1*27A 12V ( included) Remote Control Distance: about 30M without barrier Battery life: more than 1 year Working temperature: -10 ~ 60°C Working humidity: