small digital tube mini round led indicator ammeter digital indicator signal light ammeter tester measuring ampere meter type : AD101-22AM place of origin : Zhejiang Province,China(Mainland) brand name : NIN mounting diameter : 22mm color : white green red yellow blue display type : digital display ampere measuring range : AC 0-100A supply voltage : AC 50-380V frequency compatibility range : 50-60HZ display resolution : 1A sample rate : about 1 time/s no input signal hint message : display 000
