Klein Tools ET40 Voltage Tester with LED

The Performance Breakdown Guide

TEST ALL VOLTAGE LEVELS: Test AC voltages from 12V to 240V and DC voltages from 1.5V to over 17V with ease. Our versatile meter covers common residential and DC voltages, providing reliable and accurate readings every time.

BRIGHT LED INDICATION: Bright LEDs clearly illuminate voltage type and level, ensuring accurate measurements. With a clear visual display, you can trust the results.

EASY TEST LEAD MANAGEMENT: Built-in test lead holders on the back of the meter make it easy to manage test leads. Holes are spaced for testing tamper-resistant US-style outlets and provide convenient storage.

POLARITY CHECK: Easily determine polarity when measuring DC voltages. This makes electrical troubleshooting quick and efficient, saving you time.

DURABLE AND RELIABLE: IP41 ingress protection and 9.8 ft. (3 m) drop protection ensure the meter can handle jobsite demands. Built to last.

HIGHLY SAFE: Meeting CATIII 250V, Class 2, and double insulation standards, this meter is designed for safe and reliable operation. Trust in its ability to meet industry standards.

LONG-LASTING BATTERY: Enjoy consistent performance with a long-lasting battery. Rely on accurate voltage measurements whenever you need them.