High stability Measurement accuracy ±1% Mobile phone remote control The over-voltage,under-voltage,over- current and leakage protection values of this product can all be set up by yourself and can be adjusted on the basis of local practical condition The protector can display voltage, current, kilowatt, power factor, frequency, kilowatt- -hour and prepaid power value In case of over-voltage fault under- -voltage fault, over- -current fault or leakage in line, this product can instantly power offto prevent electrical equipment from being burnt Overvoltage range: 230-300V(default 270V) Undervoltage range: 140-210V(default 170V) Power-on delay time: 1S-500S Voltage:AC220V Current range: 1-16A Plug Type:EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on Colour:White Material:plastic Package Contents: 1 x Voltage and Current Protector Only 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.