Plug this digital outlet tester into any standard US three-prong socket and get instant clarity on your home’s electrical health.

The bright backlit LCD instantly displays whether your wiring is correct, shows missing grounds, or flags reversed live and neutral connections.

You avoid hidden socket hazards that risk appliance damage or personal shock without needing advanced training.

The screen continuously tracks your actual line voltage and mains frequency while you work.

This real-time power readout helps you spot unstable supplies before they harm sensitive electronics.

Press the dedicated leakage button to verify GFCI protection works properly in bathrooms and outdoor spaces.

Benefits & Tips

Travel Confidence: Plug it into wall sockets during trips to confirm grounding and safe voltage before charging devices.
New Wiring Verification: Run a fast diagnostic after renovation projects to catch swapped wires before flipping the breakers.
Smart Testing Routine: Always verify the unit on a known working outlet first, then disconnect connected appliances before testing ground faults.

Technical Specifications

Voltage Range: Operates safely between 90–250 VAC at 45–65 Hz.
Measurement Accuracy: Delivers precise readings with an error margin of ±2 percent plus five digits.
RCD Calibration: Detects leakage currents above 30 mA and confirms proper device tripping.
Display System: Features a high-contrast backlit LCD for easy viewing in dim workspaces.
Operating Environment: Functions reliably from 0 °C to 40 °C at up to 75 percent relative humidity.

Package includes:
NJTY T003-US Digital Outlet Tester
Direct current draw powers the unit, so no batteries are needed.

Pre-Use Inspection: Check the housing and probe tips for cracks or wear before every application.
Professional Repairs: Leave all wiring corrections to licensed electricians when faults are discovered.
Circuit Isolation: Remove plugged-in devices during leakage tests to prevent false readings.

All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.

Providing careful technical guidance since 2002, intercyprus.com remains focused on delivering reliable tools you can trust.