Reinforced material, all-round buckle design, stable installation, and the card will not break.APM processor only requires one intelligent data calculation, which is simple, convenient and fastApplication scenarios Save time and worry. Use electricity rationally. You can measure the power, current, voltage, power factor, and energy of electrical appliances connected to it. You can clearly see the electricity usage.Operating Instructions: Click the M button to switch between displaying power and Electrical energyWhen on the Electrical energy display page, press and hold the M button for 3 seconds, you can clear the accumulated power.Power supply voltage: AC 50-300VCurrent: 0-100AMeasuring voltage: AC 0-500VPower: 0-50KWPower fixed meter: 0.00-1.00PFElectric energy: 0-99999KwhColour:blackMaterial:plasticPackage Contents:1 x display testerOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.