The WSE11-2P2430 is an ultrasonic sensor from Sick, an international manufacturer of sensors and sensor solutions. This device is a single-beam ultrasonic distance measuring sensor with a range of 20 to 2430 mm. It is designed for indoor use and features a measurement accuracy of ±3mm with a resolution of up to 0.12mm. The output of this sensor is an analogue voltage signal, 0V/4mA to 10V/20mA, and it has an operating temperature range of -20°C to +60°C. This sensor requires an external power supply of 10 - 30 VDC and is rated IP67.