almost bran-new:TekRanger2 TFS3031(OTDR) 1310nm/1550nm;35dB/35dB(OPT-10) Tek TFS3031 TekRanger2 The TFS3031 TekRanger2 with IntelliTrace Automated Fiber Analysis System is a rugged, easy-to-use, mini-optical time domain reflectometer Large,