Klein Tools 80077 Voltage Test Kit — AC/DC Tester, GFCI Receptacle Tester & Non-Contact Pen (3-Piece)

Professional-grade voltage testing kit for electricians

The Klein Tools 80077 Voltage Test Kit brings together three essential instruments into one compact, reliable package. Built for daily field work, this set helps you determine voltage conditions with clear indicators, quickly and safely.

What’s inside and how it helps

• Electronic AC/DC Voltage Tester with indicators for DC polarity and DC voltages from 1.5 V to beyond 24 V
• GFCI Receptacle Tester for standard and GFCI outlets to detect common wiring problems
• Non-Contact Voltage Tester for safe, distance-based voltage detection in cables, breakers, fixtures and outlets

Key capabilities at a glance

• AC voltage testing from 12 to 240 VAC at four practical sensitivity levels
• DC voltage testing at four levels from 1.5 V to around 24 V
• Bright LED indicators illuminate the voltage type and level for quick interpretation
• Confirms operation of the ground fault protective device
• Non-contact detection helps you spot live circuits without direct contact

Real-world use cases

On a crowded job site, verify a receptacle before wiring, troubleshoot a faulty outlet, or check a fixture after wiring. The non-contact tester lets you gauge live status from a safe distance, while the DC and AC testers provide multi-level readings during panel work or troubleshooting.

With more than 160 years of toolmaking heritage, Klein Tools combines durable construction, precise indicators, and thoughtful design. This kit is designed for professionals who value reliability and efficiency. While it may help reduce uncertainty, it does not guarantee specific outcomes and should be used by qualified personnel following safety procedures.