Specification: Input Interface / Output Interface: 100A High Current Bite Screw Stud Current measurement range: 0.00A ~ 20A, Resolution accuracy: 0.05A Capacity accumulation range: 0 ~ 999.999Ah, Resolution accuracy: 0.01Ah Power accumulation range: 0 ~ 9999.9Wh, Resolution accuracy: 0.01Wh Power measurement range: 0000.00 ~ 2999.99W, Resolution accuracy: 0.01W Impedance measurement range: 1 ~ 999.9Ω, Resolution accuracy: 0.01 Ω Temperature measurement range: 0 ~ 99 ℃, Resolution accuracy: 1 ℃ Timing maximum time: 999 hours 59 minutes 59 seconds, Resolution accuracy: 1 second Timing measurement reminder settings: countdown 24 hours, any value can be set Small current standby to remind the threshold parameters and timing: 0.5W begin timing Refresh time: > 500mS / times Measurement rate: about 2 times / sec Overpressure Reminder Setting range: 1 ~ 200V Overflow Reminder Set Range: 0.2 ~ 100A Display Type: Micro power LCD Module LCM Green Backlight Chinese & English Display Operating temperature: -10 ~ +60 ℃ Interface: USB, 5.5mm jack, Mini USB, Micro USB, Type-C Working humidity: 10 ~ 80 Working pressure: 80 ~ 106kPa Size: Approx. 156 x 96 x 58mm / 6.1 x 3.7 x 2.2inch Weight: 631g Note: 1. Please turn down the knob to the end counterclockwise before using, and then turn up slowly. 3. Several tested power supply can not be connected simultaneously. 4. The current adjustment knob should be regulated slowly.