Description Choose from 4 options: 300V with built-in CT / 300V with external CT / 450V with built-in CT / 450V with external CT. Voltage: 40-300V/250-450V, Current: 0-100A, Active Power: 0-30000W, Electrical Energy: 0-99999kWh, Frequency: 45-65Hz, Power Factor: 0-1PF. Features a colorful LCD screen with backlight, making this single-phase energy meter clearly visible day or night. This home electricity meter is made with high-quality ABS flame-retardant material and a high-precision chip, ensuring safe use and high accuracy. Easy to install, this kWh meter can be used indoors or outdoors. Widely used in homes, schools, markets, industries, laboratories, etc. Specifications: Material: ABS Size: 54x80x64mm/2.1x3.15x2.5in Style: 300V with built-in CT / 300V with external CT / 450V with built-in CT / 450V with external CT (optional) AC Voltage: AC 80.0-300.0V / 300.0-450.0V (depending on the range you choose) AC Current: AC 0-99.99A, minimum resolution is 0.01A Power Frequency: 45.0Hz-65.0Hz Power Factor: 0.00-1.00PF Active Power: 0-45000W; when active power is between 0 and 9999.9W, the display accuracy is 0.1W Electrical Energy: 0-999999kwh; when electrical power is 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 accuracy is 1kwh. Speed: 2 times per second Installation Size: 35mm Din-rail mounting Note: Please allow 1-3cm error due to manual measurement. Please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1X Energy Meter