... /us) Max. 1 m <2000m Optical Fiber Identifier Get Fast Network Tester 8 KM Chapter1 General 1.1 General ... short circuit, poor insulation can be detected.l Multimeter function: it can be used to detect isolation resistance and ... the LCD, they are FUNC, RANG, VOP, ZOOM, FIND, FILE, LINE, press RANG as Fig. 1.3 shows, then ... range will be 500 meters. Optical Fiber Identifier Get Fast Network Tester 8 KM