The device is convenient to calculate the voltage, current, power, discharge amount and discharge time of the aircraft, and to calculate the force effect of the multi-axis aircraft.< /p> Current: 0 - 200A, DC 50A. Tension: 0 - 60V. Resolution 0.01a. The current can determine the capacity of the battery, the direct current can determine the discharge time, and the maximum instantaneous current can determine the internal structure of the battery to protect the circuit. Protect the battery, controls motor, motor, wiring and connectors from damage caused by peak current. Check that the working voltage at the load is sufficient. The product is equipped with a 16*2 backlit LCD screen for a clearer view. Don't worry about testing anywhere, even in sunny places, you can see them clearly. Auxiliary battery plug-in (6.0v - 60V) is designed with vents for releasing internal heat to the outside world. Adopting high quality copper-tin core, with large bearing capacity and low resistance. Size: 83*43*25mm