Features:
True 4-wire AC sinusoidal measurements effectively refrain the effects of test leads and contact resistance.
Two function interfaces, battery sorting function.
Built-in battery, phone recharger charging, low power consumption + multiple power saving options.
The test range is up to 200 ohms with a minimum resolution of 0.01 milliohms and less than 5 milliohms.
Press HOLD to enable the ZR function to measure internal resistance as low as 0.30-0.50 milliohms.
Handmade, the appearance of the right side is overly cautious.
True four-wire 1KHz AC sinusoidal battery internal resistance meter 0.00001 ohms-200 range.
It can measure plumbic acid, lithium ion, lithium polymer, lithium iron phosphate, alkaline, nickel hydrogen, nickel cadmium, button battery, etc.
The ZR function measures below 5 ohms, and the internal resistance is more accurate.

Specifications:
Material: ABS
Color: black
Battery: 1 * lithium battery, 2000mAh (included)
Accuracy format: ±([accuracy percentage]+[least significant digit])
Range: 20mΩ/200mΩ/2Ω/20Ω/200Ω
Maximum resolution: 0.01mΩ/0.1mΩ/1mΩ/10mΩ/0.1Ω
Accuracy: 0.7%+7/0.5%+5/0.5%+5/0.5%+5/0.6%+5
Display mode: 22.00mΩ (when ZR function is enabled)/220.0mΩ/2.200Ω/22.00Ω/220.0Ω
In the range of 5%-95% of the gear, when it is not within this range (less than 5% of the range of the gear range, or greater than 95% of the range of the gear range), the error may be greater than the above accuracy.
Voltage measurement: ±(% reading +% range)
Range: 1V/10V/100V
Maximum resolution: 0.00001V/0.0001V/0.001V
Accuracy: 0.15+0.015/0.15+0.010/0.15+0.015
Display mode: .99999V/9.9999V/99.999V
Positive and negative symmetry error ±(0.012%+5 words)
Temperature drift within normal use temperature (10℃-40℃) 100ppm/℃
Maximum voltage between any terminals: 100V
Display: internal resistance figures: 2000 counts Voltage figures: 99999 counts update 4 times per second
Temperature: working: 10℃-40℃, storage: -20℃-60℃ internal resistance temperature coefficient: 0.1 * (prescribed accuracy)/℃ (<18℃ or >28℃)
Power consumption:
<60mA (200mΩ and above range, when the power is 3.7V, the backlight is off)
<120mA (20mΩ range, when the power is 3.7V, the backlight is off)
<10mA (enter low power consumption mode)
0mA (shutdown)
Package size: 120 * 60 * 40mm / 4.7 * 2.4 * 1.6in
Package weight: 320g / 11.3ounce