Tempo NC-100 NETcat Micro - Wiring Tester for Digital Voice, Data, and Video - Manual (Page 4)

4
Important Safety Information
Read and understand this material before operating or servicing
this equipment. Failure to understand how to safely operate this
tool could result in an accident causing serious injury or death.
Electric shock hazard:
Do not connect this unit to AC power circuits.
Failure to observe this warning could result in severe injury or
death.