Features 1、The RCD Tester brings the latest technology into an instrument which is compact, firm, durable, simple to use and convenient to carry. 2、It can measure Trip‑Out Current,trip‑out time, Contact Voltage, loop resistance 3、100 groups of test result can be stored 4、Data stored in host machine can be transmitted to PC via a USB2.0 interface 5、Features backlight Indication, Auto Power Off, Auto/manual range Specification Features: The RCD Tester brings the latest technology into an instrument which is compact, firm, durable, simple to use and convenient to carry. 100 groups of test result can be stored Data stored in host machine can be transmitted to PC via a USB2.0 interface Features backlight Indication, Auto Power Off, Auto/manual range High reliability, stability and accuracy. It is the ideal tool for electrical inspection and repair. Specifications: Brand: PEAKMETER Frequency measurement: DC,45Hz-65Hz Multiplying power of measurement current: 0.5, 1 and 5 Standard/selective type current measurement lever: 10, 30, 100, 300, 500mA Power supply: 6x 1.5V AA batteries(not included) Storage elevation: 12,000m Usage elevation: 2,000m CAT III 600V; 3000 CAT II 600V Size:195*155*80mm/7.68*6.1*3.15in Weight: 2194g Package includes: 1 * RCD/LOOP Tester MS5910(batteries not included) 1 * Test Lead 3 * Crocodile Clip 1 * USB Cable 1 * CD 1 * Instructions 1 * Black Bag 1 * Lanyard Note: It supports loop resistance (RL) measurement, and it can be displayed at a minimum of 3 ohms. This model with a measurement result of 1-2 ohms is not supported. Package List 1 * RCD/LOOP Tester MS5910(batteries not included) 1 * Test Lead 3 * Crocodile Clip 1 * USB Cable 1 * CD 1 * Instructions 1 * Black Bag 1 * Lanyard