Brief introduction: Model: JY-JZ-013, which is specially designed for rolling door to prevent any illegal enter by door or window, It will send out alarm signal to alarm host when the alarm is triggered. Widely used at home, shop, school, hospital, factory, warehouse, bank, government, etc. Feature:  Wireless installation, wireless transmitter, DIY project  High quality PVC material for the plastic covers  High sensitive chips inside and strong anti-interfere  Battery supply power  LED indicator for Low voltage Specification  CE, CCC certified  Gap for triggered, 60mm-70 mm  Working voltage: DC12V  Working frequency: 315MHz/433MHz  Stand-by current: 0.01W  Alarm current: 0.09W  Working temperature: -10 ~ 50℃  Relative humidity: ≤ 95%