Simple products provide detailed product characteristics : conductivity measurement, static dissipation and insulation surface of parallel detection wandAST followed standard D - 257 test method.Measuring only requirement placed on the surface and press the red button.equipment to the 10 th power 10 10 3 12 th power LED ohms/sg or insulation which will be lit up in accordance with a numerical tests.Product function description : 0 ～ 50 ° C operating temperature relative humidity : 0%~90%RH test voltage :9Volts +1/2decade accuracy : ± 5% repeatability of product characteristics : length :Width : 137mm Height : 30mm Weight : 120 g Φ76mm