FeaturesKlein Tools ET40 is an Electronic AC/DC Voltage Tester. It features indicators for positive and negative DC polarity, and tests DC voltages as low as 1.5V. It tests AC voltages 12-240VAC. Excellent for checking, verifying or troubleshooting common residential electrical wiring in electrical outlets, light fixtures, doorbells and more. It operates on 2 x AAA batteries.
Tests DC voltages from 1.5V to greater than 17 to 24V at four useful levels aligned with commonly used DC voltages
Bright LEDs illuminate to indicate the type and level of voltage detected
Built to withstand a 9.9-Foot (3 m) drop
Indicates polarity when measuring DC voltages
Powers off automatically after approximately 2 minutes of non-use to conserve battery life
CATIII 250V, Class 2, Double insulation
Ingress protection IP41 dust and water resistant
Built-in test lead holders on sides of tester
Low battery indicator with easily accessible battery compartment
Pocket clip secures tester to pocket for reliable everyday carrying
Uses 2 x AAA batteries (included)
Identifies and distinguishes between AC or DC voltage
Klein Tools is the result of one of those “happy accidents” that turn out to be revolutionary. Klein Tools famously got their start in 1857 when a linesman came to founder Matthias Klein to repair his broken pliers. Klein replaced the broken half and when the old half of the tool broke too, Klein forged a replacement for that, thus making the first Klein Linesman pliers. Since these humble beginnings, Klein Tools has grown and become one of the largest American made toolmakers and they’re a brand used by tradesmen, linesman and electricians all across America.