No.1 field tester for high performance premise cabling - Manufacturer : Microtest Inc. - Model : OMNIScanner (main unit)  OMNIRemote (remote unit) - P/N : 2950-4000-02 (main unit)  2950-4001-01 (remote unit) - Power supply : 15 Vdc  1 A - AC adapter : switching power supply SCEPTRE  P/N PS-1512APL6  Model UP01811150  100-250 Vac, 50-60 Hz, 0.5 A/15 Vdc, 1.2 A