The XG-8WDC03 Wireless Transmitter is a smart, compact device designed to transform traditional wired sensors into wireless transmitters. It detects door or window status via a magnet reed contact and provides real-time wireless communication to security control units, particularly the Defender series or any system supporting wireless-to-wired conversions. Built with a high-resistance ABS body and rated IP66 for weather resistance, the XG-8WDC03 can be used indoors or outdoors with confidence. It supports NO and NC sensor types, selected easily via DIP switches, allowing for flexible integration into existing alarm infrastructures. This wireless transmitter features anti-tamper protection to guard against sabotage and uses a long-life 3V CR123A battery (included) for dependable operation. Measuring only 45 × 16.5 × 15 mm, it offers a discreet and flexible mounting option either on surfaces or embedded into structures. Ideal for both residential and commercial applications, the XG-8WDC03 extends the power of legacy wired systems by delivering the freedom and convenience of wireless communication without sacrificing reliability.