CX-1Non-contactphase-sequencepen1.Thefunctionofthe3-in-1phase-sequencepen(1)Phase-sequencepen:measurethephase-sequenceofthethreephasealternatingcurrent.(2)Wirefinderpen:findtheisopenofthethreephasealternatingcurrent.(3)Neon-electroscope:measuretheconductorweatheritischargedbodyornot.2.Characteristic(1)50/60Hz Foruseon50/60Hzcircuits。(2). voltageRange:AC90~600V。(3).600VACCATIII(4).SIZE：159 22mm(5).WEIGHT：45g(6).POWERSUPPLY：AAA1.5V 2