The NEW WATTSTOPPER WS-250-I PIR Wall Switch Sensor is a high-quality motion detector designed for home surveillance systems. With a voltage rating of 120/277VAC 60HZ, this sensor is compatible with a wide range of power sources. The WATTSTOPPER brand is known for its reliable and durable products, making this model a dependable choice for monitoring and detecting movement in your home. Easy to install and program, the WS-250-I is a valuable addition to any smart home system.