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The Diymore KWS-303 is a versatile 8-in-1 multifunction AC energy meter designed to give you a comprehensive view of your electrical system at a glance. Featuring a vibrant color screen, this monitor simultaneously displays voltage, electric current, active power, electric energy (kWh), power factor, frequency, sensor temperature, and on/off state all in one compact DIN rail-mounted unit. It operates across a wide input range of AC 85290V and supports up to 40A, making it suitable for a broad range of residential and commercial indoor applications. The color-coded display makes it easy to read each parameter quickly, while the built-in NTC temperature sensing interface adds an extra layer of monitoring capability. Three front-panel buttons allow for straightforward on/off control and settings adjustment. The unit is designed for indoor use, and proper cable connections are essential for accurate readings. Whether you're monitoring a fan, lighting circuit, or other AC load, this energy meter provides reliable, real-time data to help you stay informed about your power consumption.