192890-300V Twin-Lead Circuit Tester
- Handy pocket clip.
- With UL and cUL Approval.
- Bright neon AC/DC indicator.
- Insulated housing and test leads.
- Built-in lamp will glow if the circuit is live.
- Check voltage on 90-300V AC/DC system.
|3 WIRE AC GROUNDING OUTLETS AND CORDS:
Insert probes into narrow (hot) and wide slot (neutral) of receptacle, tester will glow on live circuit. To check grounding, insert one probe into narrow (hot) side and other into "U" shaped (ground), tester should glow. Then test between wide side (neutral) and "U" shaped (ground), tester should not glow.
|2 WIRE AC OUTLETS AND CORDS:
Insert probes into both slots, tester will glow on live circuit. To determine hot wire on 2 wire circuits, insert one probe into narrow slot and touch other probe to the metal mounting screw or metal plate. If screw is grounded, tester will glow. Remaining slot is the grounded (neutral) receptacle.
|3 WIRE 220V AC RECEPTACLES:
Test for normal (110V) glow between round hole (neutral) and either hot side. Observe brighter glow (220V) across both hot sides.
NOTE: Voltage less than 90V may not be detected by this tester, although they may be present.