WALFRONT Digital Battery Tester 4 Wire AC Sine Measurement Analyzer for Li Ion Ni MH Ni CD Batteries, Portable Multifunctional Internal Ohm Meter with ZR Function for Accurate Voltage

[Advanced 4-Wire AC Measurement] Utilizes true 4-wire AC sine technology to eliminate resistance interference, ensuring precise internal resistance readings as low as 0.30 milliohms. [Wide Battery Compatibility] Tests lithium-ion, LiFePO4, Ni-MH, and Ni-Cd batteries with ZR function for enhanced accuracy below 5 ohms, ideal for hobbyists and technicians. [Dual Functional Interfaces] Features 2 interfaces for streamlined battery sorting and management, simplifying electrical tasks with quick voltage and resistance checks. [Portable & Energy Efficient] Built-in 2500mAh lithium battery supports power bank charging, offering extended use with low power consumption for on-the-go testing. [High-Resolution Display] Shows 2000-count resistance and 99999-count voltage updates 4 times/sec, operating in 50°F-104°F environments for reliable field or lab use. Item Type: Battery tester Material: ABS Weight: Approx. 320.00g / 11.29oz Testing Range: 0-100V DC Battery: Lithium ion battery, 2500mAh (shipped with built in battery) Range: 20mΩ, 200mΩ, 2Ω, 20Ω, 200Ω Maximum Resolution: 0.01mΩ, 0.1mΩ, 1mΩ, 10mΩ, 0.1mΩ Range: 1V, 10V, 100V Temperature Drift within normal operating temperature range (10°C-40°C) 100ppm/°C Display: Internal resistor number: 2000 counts; Voltage number: 99999 counts, Updated 4 times per second Temperature: Operating temperature: 10°C-40°C, storage temperature: -20°C-60°C, Internal resistor temperature coefficient: 0.1* (specific accuracy) / °C (28 ℃) 1 x Battery Tester 5 x Accessories 1 x Instruction Manual Do not measure AC signals or DC voltages above 100V at the input interface.

• [Advanced 4-Wire AC Measurement] Utilizes true 4-wire AC sine technology to eliminate resistance interference, ensuring precise internal resistance readings as low as 0.30 milliohms.
• [Wide Battery Compatibility] Tests lithium-ion, LiFePO4, Ni-MH, and Ni-Cd batteries with ZR function for enhanced accuracy below 5 ohms, ideal for hobbyists and technicians.
• [Dual Functional Interfaces] Features 2 interfaces for streamlined battery sorting and management, simplifying electrical tasks with quick voltage and resistance checks.
• [Portable & Energy Efficient] Built-in 2500mAh lithium battery supports power bank charging, offering extended use with low power consumption for on-the-go testing.
• [High-Resolution Display] Shows 2000-count resistance and 99999-count voltage updates 4 times/sec, operating in 50°F-104°F environments for reliable field or lab use.