1. AC 85-300V 50/60HZ2. Over current protection, over voltage protection, under voltage protection can disable one , two or three of them.3. the device have Compatible With Apple interface protection Compatible With itself.4. Voltage and Current Accuracy 0.5%5. Its own power consumption Less than 0.5WCan be manually and automatically reconnect.Can set the delay on and delay off timeCan be used as a normal switchCan be used as a cycle switch. Remarks The product does not have a battery. If the external power supply is out of power, the cycle time starts from 0.Electricity metering accuracy Class 1Backlight mode is optional, convenient Compatible With user scene selectionMalignant load identification limit (pure resistive load), Compatible With apartments Rental housing restrictions Fast heat Electromagnetic Kettle Electric rice cooker and other resistive high-power equipment.Types:B-80A Top InputColour:WhiteMaterial:plasticSize:about 100 x 36 x 67mmPackage Contents:1 x Adjustable Over Under Voltage Protective DeviceOnly 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.