Stable RF Signal Pairing: Easy to match with your existing Wolf Guard home alarm system controller without complex settings 15M Wireless Communication Distance: Real-time send open/close alert signal to your control panel for home entry security monitoring Easy Self-Installation: No wiring required, comes with strong adhesive tape for quick and simple mounting High-Precision Magnetic Contact Sensor: Instantly trigger alert to the connected control panel when door/window is illegally opened, effectively preventing burglary and unauthorized entry to protect your family and property safety Durable & Low Power Consumption: Made of high-quality ABS fireproof material, dustproof and durable with long standby battery life and low power reminder supported via control panel Compatible with Wolf Guard Systems: Specifically designed to work seamlessly with Wolf Guard alarm panels and control panels using 433MHz frequency Round Design Magnetic Sensor: Compact round-shaped sensor unit that provides discreet installation on doors and windows while maintaining reliable detection performance, Manufacturer: Chi Tong Da