Four-line TS457 DC5V High-precision Lithium Battery Internal Resistance Meter Tester Quality Detector 18650 Dry Battery

Battery Included : No High-concerned chemical : None Power Source : None Model Number : TS457 Voltage internal resistance tester Type : Household Battery Tester DIY Supplies : Electrical Brand Name : Interest Maker Origin : Mainland China Caution : Do not test AC power, do not test voltages above 45V Working voltage : DC5V (do not supply power with overvoltage) Test principle : AC 4-wire method Voltage testing range : 0.001V~45.00V, maximum resolution 0.001V Internal resistance measurement range : 0.1m Ω~6.999 Ω, maximum resolution 0.1m Ω Data recording : Supports recording 5 sets of internal resistance measurement data Voltage display fine-tuning : Supports Internal Resistance Display Fine Adjustment: : Supports Automatic shutdown : Supports 1-9 minute standby time adjustment Backlight brightness: : Supports 1-9 levels of display backlight brightness adjustment