Dual Relay Outputs】This digital meter counter has dual relays to control two devices at the same time. It can also independently control alarms, motors, cutters, inverters, solenoid valves, and more to meet your needs. Power-off Memory Function】This meter counter has a power-off memory function, which can retain the measurement data even if there is a sudden power failure during work. Wheel Sensor】The wheel of the sensor is made of rubber, which has high strength and is wear-resistant and anti-skid. The wheel will not easily shift when working, which ensures measurement accuracy. The forward rotation means to increase the length, and the reverse rotation is to reduce the length. HD Display】This digital meter counter is equipped with a high-definition digital display, and the measured data can be obtained directly.The counting range is 0-999999m/3280837ft, which can be used for measuring large-scale products in various factories. Service ：We value your shopping experience! If you have any questions, please contact us, and we will respond within 24 hours.