... sensor zones Mobile phone alarm, SOS calling SMS remote control Wireless doorbell & siren alert burglar GSM system Product Introduction: SIMPAL- ... l Work with wireless sensor: It can work with 433Mhz wireless sensors (8 sensor Zones), such as door magnet, PIR sensor, smoke ... wireless sensors, SimPal-B3 can send SMS or make audio call to alarm. It can work with door sensor, PIR detector, Smoke detector etc ...