Southwire 40116N Non-Contact AC Voltage Detector Pen Tester 100-600V CAT IV

The Southwire 40116N is a pen-style non-contact voltage tester (NCVT) that safely detects live AC voltage from 100 to 600 volts without making direct contact with wiring or electrical devices. Designed for electricians and DIYers alike, it quickly checks for the presence of live voltage in outlets, wires, light switches, circuit breakers, and lighting fixtures — with no direct contact required.

The slim, pocket-friendly design features a thinner probe tip engineered for easy insertion into standard wall outlets. A green LED confirms the tester is powered on and ready, while a flashing red LED combined with an audible beeper alerts you the moment voltage is detected. The beep and flash rate increase as the probe tip moves closer to the voltage source, helping you precisely pinpoint the live conductor.

Key Features:

• Non-contact AC voltage detection — no direct wire contact needed
• Detection range: 100–600V AC at 50/60 Hz
• CAT IV 600V safety rating — UL and CUL listed
• Dual LED indicators: green (power on) and flashing red (voltage detected)
• Audible beeper alert with proximity-sensitive beep rate
• Built-in LED flashlight (2× brighter) for working in dark or dimly lit areas
• Thinner probe tip for compatibility with standard wall outlets
• Low battery self-test — automatically powers off if battery level is too low
• Auto power-off after 5 minutes of inactivity to extend battery life
• Pocket clip for convenient belt or pocket carry
• Rated for a 6-foot drop test
• IP67 waterproof rating
• Powered by 2× AAA batteries (not included)

Specifications:

• Detection Voltage Range: 100–600V AC
• Frequency Range: 50/60 Hz
• Safety Rating: CAT IV 600V
• Operating Temperature: 32°F to 104°F (0°C to 40°C)
• Storage Temperature: 14°F to 140°F (−10°C to 60°C)
• Maximum Humidity: 80%
• Dimensions: 6.23″ H × 0.83″ W × 0.99″ D
• Weight: 0.16 lbs
• Battery: 2× AAA 1.5V

Note: Not designed for use with Tamper Resistant (TR) outlets. Backed by Southwire's 5-Year Limited Warranty.