... panel:Front: sensor socket, power socket, fuse, indicator light, power switch. Back: output 1(analog), output 2(analog), output 3(digital ... : Metal; good sealing,.proof splash; Shaft RPM indicator 300-0-300RPM /600-0-600RPM built-in power board complete with sensorModel No ... ;2. Size:120*120mm Technical parameters: (1) Range:600-0-600R,300-0-300R /minute; (2) precision class: 1.5;(3) pointer ...