Enhance your electrical testing with the TS4520 Voltage and Internal Resistance Tester, designed for precise and efficient measurement of voltage and internal resistance. Featuring a vibrant 1.77-inch TFT color display with adjustable backlight brightness, this versatile tester delivers clear, accurate readings ideal for professionals and hobbyists alike. Its advanced functions, including data recording, display calibration, and customizable settings, ensure streamlined and reliable testing workflows. Key Features: · Accurate Voltage & Resistance Measurement: Accurately measures voltage from 0.001V to 45.00V and internal resistance from 0.1mΩ to 20.00Ω with high resolution, enabling detailed and reliable diagnostics. · Vibrant 1.77-Inch TFT Color Display: Provides sharp and easy-to-read visual feedback, with adjustable backlight brightness levels (1-9) to optimize usability in various lighting conditions. · Display Value Calibration: Supports fine-tuning of voltage and internal resistance readings, enhancing measurement accuracy to meet specific requirements. · Data Recording & Management: Automatically records up to 6 groups of internal resistance data and allows manual deletion, simplifying test record management and improving efficiency. · Flexible Configuration Options: Includes screen rotation adjustment, factory reset functions, and configurable automatic shutdown timing (1-9 minutes), offering tailored operation to user preferences and power saving. · Efficient Power Management: Powered via a Type-C interface (power supply sold separately) and equipped with an integrated ternary lithium battery charging module, enabling convenient battery integration and energy-efficient operation (~50mA consumption). · Portable & Compact Design: Measuring just 70 x 90 x 28mm and weighing 134g, its lightweight size and durable plastic construction make it ideal for fieldwork and easy storage. · Advanced Testing Method: Utilizes the AC 4-wire method for precise resistance measurements and includes a USB Type-A to Kelvin clip test fixture for reliable connectivity. Specifications: · Material: Plastic · Working Voltage: 5V DC (external power supply required) · Power Interface: USB Type-C (power supply and cable not included) · Test Principle: AC 4-wire method · Voltage Test Range: 0.001V – 45.00V (max resolution 0.001V) · Internal Resistance Range: 0.1mΩ – 20.00Ω (max resolution 0.1mΩ) · Display: 1.77-inch TFT color screen with adjustable backlight (1-9 levels) · Data Storage: 6 groups of internal resistance data with automatic recording at clamp disconnect · Auto Shutdown: Adjustable standby time from 1 to 9 minutes · Dimensions: 70 x 90 x 28 mm (2.76 x 3.54 x 1.10 in) · Weight: 134g (4.72 oz) Package Includes: · 1 x Voltage Internal Resistance Tester · 1 x USB Type-A to Kelvin Clip Test Fixture The TS4520 Voltage and Internal Resistance Tester combines precision, user-friendly features, and portability. It is an ideal tool for electrical engineers, technicians, and enthusiasts who require accurate measurement and efficient data management for voltage and resistance testing.