Reinforced material, all-round buckle design, stable installation, and the card not break. Application scenarios Save time and worry. Use electricity rationally. You can measure the power, current, voltage, power factor, and of electrical appliances connected to it. You can clearly see the electricity usage. processor only requires one intelligent data calculation, which is simple, convenient and fast Operating Instructions: Click the M button to switch between displaying power and Electrical, Manufacturer: PokFhgur