ITEM NAME:100A LCD Digital Volt Voltage Watt Current Power Meter Ammeter Voltmet JCA_ Widely Use in cars, boats, motorcycle and Testing Devices for measuring voltage and current Widely used in equipment and electromechanical device Monitoring battery & electrical system, solar, Wind, HHO System The New version details Specifications: Working voltage: 80 ~ 260VAC Test voltage: 80 ~ 260VAC Rated power: 100A/22000W Working frequency: 45-65Hz Measurement accuracy: 1.0 Size: 89.6*49.6*24.4mm(Length*Wide*High) LCD screen: 51*30mm(Length*Wide) Color: Black About function - Measure and monitor the electrical parameters (voltage, current, kWh, watt) - Overload alarm function (more than watt alarm threshold , backlight flashing) - Power alarm threshold preset function (can set up their own power alarm threshold) - Power(kWh) button reset function - When power off, store the data, when on, continue the date - Large screen LCD liquid crystal screen full display function (voltage, current, kWh, watt) - Backlight function About Display Display interface. By the large screen LCD display LCD monitor voltage and current, kWh, watt, electric parameters - Watt: the measurement range of 0~10kW less than 1kW: 0.0~999.9W less than 10kW: 1000~9999W - kWh: the measurement range of 0~9999kWh less than 10kWh: 0~9999Wh more than 10kWh:10~9999kWh - The test voltage range of 6.5-100V DC Display format 6.50~99.99V - Current test range: 0~100A Display format 0.00~99.99A About Button - Backlight control Can turn on/off backlight by short press - Power rese Step 1: long time press the button ( about 5 seconds), til display flicker, then release the button Step 2: if short time press the button again, then power(kWh) reset zero and exit flicker Step 3: if long press button for 5 seconds until it is no longer flicker, power(kWh) data is not cleared and exit - Set the alarm (watt Step 1: long press the button, till the LCD screen display "SET CLr", release the button Step 2: show the alarm(voltage) va.Current test range: 0~100A. Display interface. - Overload alarm function (more than watt alarm threshold, backlight flashing). LCD screen: 51 30mm(Length Wide). - Set the alarm (watt. Threshold setting watt range: 6.5v-99.99v. ).