iZtouch -8 Packs - Universal 433MHz GSM Wireless Magnetic Contact Sensor Window Door Entry Detector For Home Office Security Alarm System, Accessories for Wireless 433MHz IP Camera Accessories for iZtouch IZSP-006 IP Camera, you can receive alert on your smart phone and Email It will work with most standard security system which is using 433MHz receiver Coding Type: Fixed Code, Transmit Frequency: 433MHz, Transmit Duration: less than 1s, Transmit Distance from host: more than 80m (no obstacle) Easy to install & pairing- just peel and stick (battery and double-sided stickers included) Built-in omnidirectional antenna, Accurate, High-performance and low power consumption