Features 【Multi -functional measurement】: Multi -functional digital instrument, large -screen LCD display, can measure and display six electrical parameters (voltage, current, power power, electrical energy, frequency, power factor). 【Alarm function】: overload alarm function (over -power alarm threshold, backlight and power flash alarm). Power alarm threshold preset function (setting power alarm threshold). 【Memory function】: You can reset your energy to use the key. Short pressing the button to turn on or turn off the backlight, which has a memory function, which can store or turn off when power -off. 【Wide application】: This instrument is made of high -quality materials, precision processing, powerful performance, accurate measurement, widely used in home appliances, industrial instruments, mechanical instruments, etc. 【Note】: This instrument is suitable for indoors, do not use it outdoors. The load should not exceed the rated power. The wiring order cannot be wrong. Specification: Working voltage: 80 - 260VAC Test voltage: 80 - 260VAC Current: 100A Rated power: 100A/22000W Working frequency: 45-65Hz Measurement accuracy: 1.0 class Size: 9*5*2.5cm/3.5*2*1in Cable length: 19cm/7.5in Weight: Approx. 110g/3.9oz packing list: 1 x AC Multifunction Digital Meter 1 x Closed CT Appearance and key function: display format 1. Power: Test range: 0~22000W, startup measurement power: 0.2W <10W Display format: 1.00~9.99W <100W Display format: 10.0~99.9W <1000W Display format: 100~999W <10000W Display format: 1.00~9.90kW ≥10000W Display format: 10.0~22.0kW 2. Energy: Test range: 0~999kWh <1kWh Display format: 0~999Wh <10kWh Display format: 1.00~9.99kWh ≥10kWh Display format: 10~999kWh 3. Voltage: Test range: 80~260V Display format: 80~260V 4. Current: Test range: 0~100A, start-up measurement current: 0.001A <10A Display format: 0.000~9.000A ≥10A Display format: 10.00~99.99A 5. Frequency: Test range: 45~65Hz   Display format: 45~65Hz 6. Power factor: Test range: 0~1PF   Display format: 0.00~1.00PF Key Features: 1. Backlight control Short press the button to turn on or off the backlight, the backlight has a memory function, which can store the on or off state when the power is off. 2. Reset Step1: Press and hold the button for 5 seconds until the energy value flashes, then release the button. Step2: Short press the key again to clear the energy value and exit the reset flashing state. Step3: If there is no key operation within 5 seconds, it means that the energy value is not cleared and exits the reset state. Package List 1 x AC Multifunction Digital Meter 1 x Closed Type CT