If measuring below 7.8V needs an external voltage of 4-30V. If the voltage exceeds 30V, the product will be burnt out. Although the DC voltage meter has reverse connection or short-circuit protection, but there is no protection in the independent power supply , it is directly power supply to the device, if connect high-voltage will burn motherboard and display will not show.
Can test voltage range 0-300V, current range 0-100A, test power even up to 30,000W, high voltage rechargeable batteries, or low voltage 18650 battery.
Support current, voltage, capacity accumulation, power accumulation, power, impedance, temperature, time eight data screen display.
Input Interface / Output Interface: 100A large current copper nose clip line
Voltage measurement range: 0.00V ~ 300V Resolution Accuracy: 0.05V
Current measurement range: 0.00A ~ 100A Resolution Accuracy: 0.05A