9 in 1 DC USB Tester Current 4-30V Voltage Meter Timing Ammeter Digital Monitor Cut-off Power Indicator Bank ChargerTime cut-off power supply
Resistance: 0-999.99ΩPower: 0-150WVoltage and current: DC4-30V; 0-5ATiming Delay: 0-99 hours; 0-24 hoursVoltage over-current protection range: 30V /5AMonitoring Content: USB voltage, current, power, power, timing and other dataElectical Energy: 0-999.9WH