Wireless Magnetic Sensor Door Alarm Entry Defence Safety Security Burglar Loud Alarm Doorbell

Product Name: Wireless Magnetic Sensor Door Alarm Entry Defence Safety Security Burglar Loud Alarm Doorbell Model NO.: ZDG-104MB Receive Frequency: 433.92MHz Alarm Volume (within 1m): ?110dB Transmission Mode: Wireless Working Principle: Electro-Optical Type Application: Indoor Certification: ISO, FCC, RoHS Working Mode: Passive Signal Transmission: Wireless Alarm Type: Home Alarm Wireless Frequency: 315MHz/433MHz Coding Type: Learning Code Alarm Volume: 105dB Battery: 4.5V, 1.5V* 3PCS Lr44 Cell Batteries Output: Alarm/Door Chime Selectable Standby Current: <10mA; Working Current: <70mA Installation Mode: Wall Mounted Easily Mounted: by Adhesive. Unique Design: Small Size and Portable Quality: 100% New and High Quality Alarm Type: on-Site Alarm Operating Temp: -10 to +60