The sensors including oil pressure sensor, proximity switch, flow sensor, pullon the rope sensors, current sensors, gas concentration sensor, power transducer, ultrasonic liquid level sensor, temperature sensor, tension sensor. 传感器有油压传感器、接近开关传感器、流量传感器、拉绳传感器、电流传感器、气体浓度传感器、功率变送器、超声波液位传感器、温度传感器、拉力传感器。