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⚡ Test Smarter, Work Safer — The Voltage Tester Pros Trust!
The Klein Tools ET40 Digital AC/DC Voltage Tester is a compact, professional-grade tool designed for precise residential voltage testing. It covers a broad AC range (12-240V) and sensitive DC detection (1.5-24V), features bright LED indicators for quick readings, and includes safety certifications like CATIII 250V and double insulation. Built tough to withstand drops and resist dust and water, it’s engineered for durability and accuracy on every job.












| Asin | B07P45RB8S |
| Batteries | 2 AAA batteries required. (included) |
| Best Sellers Rank | #90 in Voltage Testers |
| Date First Available | 12 February 2019 |
| Department | Unisex Adult |
| Is Discontinued By Manufacturer | No |
| Item Model Number | ET40 |
| Manufacturer | KLEIN TOOLS |
| Product Dimensions | 13.31 x 3.86 x 2.82 cm; 65.2 g |
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