Place of Origin : Shenzhen,China
GSM SMS Multi-functional Telephone Siren Alarm System(YL-007M5B) Wireless PIR Sensor Model: YL-007M5B 1. Making & Receiving Calls . 2. Phone book & Whitelist & Blacklist 3. Sending & Receiving & Storing SMS 4. Maximum 16 wireless sensors 5. Password supported 6. Wireless 433 or 315MHz channel 7. SMS & Dialing Alarms 8. User could activate/deactivate the system with SMS commands. 9. Full-customization functions; Flexible configuration methods; Able to work in different