Introduction:This voltage and internal resistance tester adopts Kelvin four-wire detection, effectively eliminating the influence of line and contact resistance, realizing high-precise internal resistance and voltage detection. With its professional and accurate test performance, humanized design concept, nice durability, and long endurance, this battery internal resistance tester is a practical partner for battery or powersupply maintenance and troubleshooting, suitable for various battery testing scenarios.Features:【Efficient Voltage & Resistance Measurement】: The TS457 entry-level voltage and resistance tester accurately displays both voltage and internal resistance values, allowing users to conveniently record measured resistance values and delete recorded data as needed, streamlining test workflows.【Fine-Tunable Display Value】: With voltage and resistance display value adjustable functions, the tester allows users to calibrate readings to improve the display accuracy and meet the accuracy requirements of the user.【Display Backlit & Standby Time Management】: Supports standby time adjustment and display backlight adjustment to ensure maximum visibility in various ambient illumination conditions while conserving energy, helping to extend battery lifespan and enhance the user experience.【Versatile Configuration & Reset Functions】: Supporting screen display rotation adjust and factory reset function, the tester offers high flexibility in instrument operation, ensuring adaptability to different user preferences and troubleshooting needs.【Automatic Shutdown Function】: Offering automatic shutdown time setting function, with a default time of 2 minutes, the tester helps conserve battery electricity while ensuring flexibility to adapt to individual user preferences and work scenarios.Specifications:Name: Voltage Internal Resistance Tester Material: plasticsType: tester, tester and Kelvin clip set (optional)Voltage measurement ranges: 0.001V-45.00VInternal resistance measurement ranges: 0.1mΩ-6.99ΩItem size: 79 * 42 * 28mm / 3.11 * 1.65 * 1.10inItem weight:Tester: 40g / 1.41ounceTester and Kelvin clip set: 55g / 1.94ouncePackage size: 155 * 103 * 42mm / 6.10 * 4.06 * 1.65inPackage weight:Tester: 71g / 2.50ounceTester and Kelvin clip set: 87g / 3.07ouncePackage includes(optional):

Type 1:

1 x Voltage Internal Resistance Tester1 x Power Line

1 x 4Pin Cable

Type 2:

1 x Voltage Internal Resistance Tester1 x Power Line

1 x Kelvin Clip

Type 3:

1 x Voltage Internal Resistance Tester1 x Power Line

1 x Battery Holder