Ultrasonic Distance Sensors are often used in robots and alarm systems to either measure distance or to sense the proximity. This particular Ultrasonic Distance Sensor is a low cost sensor perfect for use in most projects.This sensor module has 4 pins VCC, Trigger, Echo and Gnd. It uses 40 KHz frequency. It outputs analog signals between 0V to 5V.
|Input Voltage (Limits)||5V DC|
|Distance Range||2 to 450 cm|