Specification: Input/output interface: 100 A Large current copper nose screw Voltage range: 0.00 V ~ 320 V Resolution precision: 0.05 V Current range: 0.00 A ~ 100 A Resolution precision: 0.05 A Capacity range: 0 ~ 999.999 Ah Resolution precision: 0.01 Ah Power cumulative range: 0 ~ 99999.9 Wh Resolution precision: 0.01 Wh Power range: 000.00 ~ 99999 W Resolution precision : 0.01 W Impedance range: 1 ~ 999.9 Resolution precision: 0.1 Temperature range: 0 ~ 99 Resolution precision: 1 Timing maximum time: 999H59M59S Resolution precision: 1S Timing remind Settings: the countdown 24 hours of any value Small current standby alert threshold parameters: < 2 W / 0.5 H Small voltage power supply requirements: measuring < 7.8V low voltage, please supply independent power supply interface Range of 4 ~ 30V dc power supply voltage to the measurement system Time to refresh: > 500 ms/time > 500 ms/times Measurement rate: 0.5 times per second Over-voltage over-current set the alarm mode: display warning interface to alert users Overpressure to remind the set range: 1 ~ 320V Low pressure remind set range: 0 ~ 149V Flow to remind the set range: 0.2 ~ 100A Display type: micro power consumption of LCD module LCM black font green backlit display in both Chinese and English Product size: 117 x 61 x 38mm Since the power flow: < 0.02 A Working temperature: - 10 ~ + 60 degrees Celsius - 10 ~ + 60 Working humidity: 10 ~ 80 (dew) undoubtedly 10 ~ 80 (no doubt) The pressure of work: 80 ~ 106 kpa