Wireless Magnetic Sensor Door Window Security Burglar Alarm w/ 3 Remote Control

Description: Wireless Magnetic Sensor Door Window Security Burglar Alarm w/ 3 Remote Control Features: 1. One Magnetic Sensor can match with at most 8 remote controllers freely. 2. One remote controller could control several magnetic sensors; 3. Excellent Home use product, Tiny and fashion; 4. Volume: 110DB; 5. Alarm and door bell function for your option; 6. Low energy and long work time; Specification: 1. Voltage: 3V AAA*2pcs(not included) 2. Stand-by Volume: 100A 3. Alarm volume: 30mA 4. Frequency: 433MHZ 5. Alarm response time: 200ms 6. Stand-by time: 8-12 months 7. Specifications of Remote control 8. Voltage: 12 built in 12V27A*1pcs 9. Stand-by Volume: 1A 10. Working volume: 15MA 11. Stand-by time: 8-24onths 12. Remote control distance: 20m 13. Magnetic Sensor size: 8.4*4.3*1.4cm Low pressure detection: 1.When the battery is low, the LED of magnetic door will flashing once per second, prompt low, please replace the battery. 2.Remote control lights flashing dimmed or remote distance becomes shorter, please replace the battery. Package includes: 1 x Magnetic Sensor (batteries not included) 1 x Magnetic Stick 3 x remote control(built in 12V 27A* battery 1pcs) 1 x user manual Details pictures: