Key Features: User-friendly Design: Dc load tester 400W adopts 2.8-inch TFT LCD screen with rich display contents; The operation process is simple and convenient, and with visual interface display system, it is easy to get started. Key lock function to prevent misoperation; High-performance load: dc electronic load battery capacity tester provides CC, CV, CR, CP and CC+CV, CR+CV several basic measurement modes; electronic load provides professional battery test; Dc battery load tester provides professional LED test; The Tran test mode can test the dynamic output performance of the power supply; The scan test mode can test the continuity of power output within a certain range; The list test mode can simulate a variety of loading status changes; The short circuit test can be used to simulate load short circuit; Support external trigger input (DB9 interface is required); Built-in buzzer alarm; Maintain data storage in case of power failure; Remote operation via USB interfaces; Multiple safety protection: Dc battery load tester provides overcurrent, overvoltage, overpower, over temperature protection. The overvoltage and overcurrent parameters can be set flexibly, so as to effectively protect the load; It has intelligent fan speed control function, which can effectively reduce the fan noise when it is working. With input polarity reverse prompt; General technical specifications: Power supply voltage: 100Vac±10%~240Vac±10%，50/60Hz Display: 2.8-inch TFT LCD screen with resolution of 320×240 Operating temperature: 0℃ to 40℃ Storage temperature: -10℃ to 70℃ Relative humidity: <80% Interface: standard USB Size: 90mm×190mm×300mm (width × height × depth) Standard accessories: