Datasensing UK1 Ultrasonic sensor is the right solution to control the #stabilizer extension in hydraulic cranes.

Cranes must have devices that warn the driver and prevent dangerous movement, as: overload and overcoming of overturning moment.
Stability control is done by a "load limiter” device that compare the degree of stabilizer unthreading with the crane load and, in case of danger, warns the operator or stop the crane.
Typically, the measure of how much the stabilizer is pulled out is done through a wire rotary encoder. 
The ultrasonic sensor is a technologically advanced alternative to the encoder and eliminates the risk of mechanical wear over time because constructively do not consider moving components and carries out the measurement without contact between the parts.

Furthermore, an ultrasonic sensor is a cheaper solution than an encoder. Datasensing M18 ultrasonic cylindrical sensors UK1 series are placed on the hydraulic arms on Its static part.
At the opposite end of the extensible part of the same, is fixed a plate that acts as target.
The ultrasonic sensor measures its distance from the plate, detecting the arm length. Datasensing sensors are mechanically well protected from dust and water, having an IP67 protection degree, being completely resined and able to work at temperature range between -20°C and 70°C.