The host comes with charging and discharging curves and peak records to observe the charging and discharging curves and view the maximum value<br> Powerful computer host software APP Computer online background synchronization setting function<br> HID online upgrade of host firmware update lifetime free upgrade function<br> Simple wiring, easy to modify, strong versatility, true 4-wire wiring design, more accurate voltage measurement<br> Test all kinds of battery capacity and various DC power supplies Test all kinds of 0~420V DC power supplies and various batteries, high-definition colorful screen, one screen displays multiple parameters, suitable for all working voltages of 0~420V lithium batteries, lithium iron phosphate, lead acid, nickel metal hydride and other batteries and DC power supplies<br> Name: Battery capacity/DC power meter<br> Model: DT20<br> Measurement voltage range: 0~420V (5V power supply is required for the meter)<br> Measurement current range: 0.3~300A<br> Measurement capacity range: 0~99999Ah<br> Curve function: Dual parameter curve can be paused/run<br> Colour: Black<br> Material: ABS<br> Package Contents:<br> 1 x Battery/Power Tester<br> Only the above package content, other products are not included.<br> Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.