If you use the WisDom Wireless Security System in your home, you can use this system to monitor the entries to your home. The WisDom Wireless Universal Transmitter is a supervised general-purpose transmitter that can be connected to pre-installed magnetic contacts or to other sensors. If your home's doors and windows do not have magnets pre-installed, use the WisDom Wireless Door/Window Contact instead. This wireless transmitter has a range of up to 1000 feet; if your door is located more than 1000 feet from your WisDom Wireless Security System panel, install a Wireless 433 MHz Repeater to extend the transmission range. Turn Wired Motion Sensors Into Wireless Detectors Connect this universal transmitter to the hardwired WatchOUT outdoor , Quad Technology, or 360-degree ceiling mounted motion detectors, and you'll be able to send their signals wirelessly to your WisDom Wireless Security System when an intruder enters your property. About the WisDom Wireless Security System The WisDom Wireless Security System is easy and quick to install, and it offers substantial cost savings over comparable wired systems. This expandable 433 MHz wireless security system is extremely flexible, so it will easily conform to the needs of your property. With features like remote voice control, dedicated buttons for simple emergency notifications, and programmable home automation with time scheduling, the WisDom Wireless Security System is a reliable, smart, and easy-to-operate system that offers the freedom of wireless sensors and control via phone from anywhere in the world. Available Wireless Sensors Included in the starter kit are two door contacts and a pet-immune passive infrared motion detector, along with one 4-button keyfob transmitter to arm and disarm the system. Additional available modules include: # Integrated Voice Module # Pendant Panic Transmitters # X10 Interface Module for Home Automation # Universal Transmitters/Magnetic Contacts # Door/Window Contacts # Smoke Detectors # Extra PIR / PET Detectors # Quad Technology PIR Motion Detector # Dual Technology 360 Ceiling Mount Motion Detector # 360 Ceiling Mount PIR Motion Detector # Central Monitoring Station # Remote Upload & Download # Follow me & Remote Operation # AGM-Advanced GSM/GPRS Module # Additional Wireless Keypads # 2 Button Keyfobs # Additional 4 Button Keyfobs # Wireless External & Internal Sounders # Flood Detectors # Shock Detectors # Program Transfer Module # Wireless WatchOUT # Wireless Glassbreak Detectors Since the system will accept up to 32 wireless transmitters, you'll be able to install as many of each style as you need to customize this system to your home.