Features:<br>There are 4 standard, 300V with built-in CT /300V with external CT/450V with built-in CT/450V with external CT pick your own.<br>Voltage: 40-300V/250-450V, Current: 0-100A, Active Power: 0-30000W, Electric Energy: 0-99999kWh, Frequency: 45-65Hz, Power Factor: 0-1PF.<br>Colorful LCD display, with backlight function, this single phase energy meter is clearly visible whatever day or night.<br>This home electricity usage monitor features high quality ABS flame resistant material and high percision chip, making it safe to use with high precision.<br>This Kwh meter is easy to install and can be used indoor or outdoor. Widely used in home, school, market, industry, laboratory, etc.<br> <br>Specifications:<br>Material: ABS <br>Size: 54x80x64mm/2.1x3.15x2.5in<br>Style: 300V with built-in CT/300V with external CT450V with built-in CT/450V with external CT(optional)<br>AC voltage: AC 80.0-300.0V / 300.0-450.0V (depends on the range you choose)<br>AC current: AC 0-99.99A, minimum resolution is 0.01A<br>Power frequency: 45.0Hz-65.0Hz<br>Power factor: 0.00-1.00PF<br>Active power: 0-45000W when the active power between 0 and 9999.9W, the display accuracy is 0.1W<br>Electric energy: 0-999999kwh, when the electric power between 0 and 999.99kwh, the display accuracy is 0.01kwh, when between 10000.0-9999.9kwh, the display accuracy is 0.1kwh, when between 10000.0 and 999999kwh, the display accuray is 1kwh.<br>Speed: 2 times per second<br>Installation Size: 35mm Din Rail mounting<br> <br>Note:<br>Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid.<br>Due to the difference between different monitors, the picture may not reflect the actual color of the item.<br> <br>Package includes:<br>1X Energy Meter