TRMS measuring AC Voltage Artificial load 12A,15A, 20A measuring wire drop(MS5908A)/Artificial load 5A,8A,10A measuring wire drop(MS5908C) Measuring phase voltage, neutral wire, voltage to earth, voltage, frequency Measuring phase(live wire), neutral wire, earth wire conductor impedance Identifying 3-wire socket connection mode(neutral for left and live for right,having earth wire or not) Test the reliability of residual current device(RCD) and response action time. Test the reliability of GFCI action and response action time. Backlight function and data hold function. Specifications: Wire Voltage: 85.0-265.0V: 0.1V +/-(1.0%+0.2V) Voltage: 121.0-374.0: 0.1V +/-(1.0%+0.2V) Frequency: 45.0-65.0Hz: 0.1Hz +/-(1.0%+0.2Hz) Voltage Drop: 0.1%-99.9%: 0.1% +/-(2.5%+0.2%) Voltage Loaded: 10.0-265.0V: 0.1V +/-(2.5%+0.2V) Voltage to earth of neutral wire:0.0!10.0V: 0.1V +/-(2.5%+0.2%) Impedance for live wire, neutral wire and earth wire: 0.00-3.00Ω: 0.01Ω +/-(2.5%+0.02Ω) RCD Triggering Time: 1ms-6.500s: 1ms +/-(1.0%+2ms) RCD Triggering Current: 30mA-37mA: 0.1mA +/-(1.0%+0.2mA) GFCI Triggering timer: 1ms-6.500s: 1ms +/-(1.0%+2ms) GFCI Triggering Current: 6mA-9mA: 0.1mA +/-(1.0%+0.2mA) Power Supply: 1.5 AAA * 6(Not included batteries) Model Number:MS5908A name:Circuit Analyzer Tester Notes:Shipping company does not accept liquids and powders and dry batteries Plug Type:US Plug, it applies to Canada, India, Mexico, Thailand, Taiwan, the United States, the Philippines and so on Voltage:AC110V Colour:Green & Black Material:plastic Package Contents: 1 * Circuit Analyzer Tester Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.