● Impedance Range: 6mΩ / 60mΩ / 600m Ω / 6Ω (auto-range) Accuracy: ±1.5% of reading ±3digits Resolution: 0.001mΩ ● Capacity Range: 0 ~ 9999Ah Accuracy: ±1.5% of reading ±3digits Resolution: 0.001Ah ● DCV Range: 6V / 60V (auto-range) Accuracy: ±0.5% of reading ±3digits Resolution: 0.001V ● DCA Range: 6A / 60A / 200A (manual) Accuracy: ±1.5% of reading ±3digits Resolution: 0.001A / 0.01A / 0.1A ● Temperature Range: -20℃~100℃ Accuracy: ±1.0℃ Resolution: 0.1 ℃ ● Set discharge end voltage manually. ● Auto alarm when capacity measurement finish . ● Data Storage 50 records of impedance and voltage data are available to store into memory . ● RS-232 ● Supplied with lithium rechargeable batteries, very easy to charge with AC power line. Application: ● Measure the impedance and capability of rechargeable batteries. which voltage below 60V, ● A perfect tool for identify the batteries used in UPS devices, vehicle, emergency lighting, alarm, sprinkler systems, business security devices electro motion ca r etc..