Testing Testing yup it’s handy
"I keep this little tester handy in my AC power test bag. The unit is super simple to use and works like a charm for quick down and dirty testing. Make sure to have one of these in your test bag at all times"




The new Klein Electronic AC/DC Voltage Tester is a lightweight and portable meter that can be used to check, verify, or troubleshoot common residential electrical problems. You can use this meter on light fixtures, doorbells, electrical outlets, on-going construction projects and more. This tester is equipped with indicators for positive and negative DC polarity, built-in leads with side holders, and a convenient battery indicator. Powered from just 2 AAA batteries, it is easy to find back up or replacement cells. When you are done with the meter or moving on to a different task, use the durable pocket clip for a hands-free way to carry it to the next job.
Proudly Made in the U.S.A. ![]()
Note: For more information and detailed product map, please refer to the included or downloadable user manual.
Warnings: Read, understand, and follow all instructions, cautions and warnings attached to and/or packed with all test and measurement devices before each use. Before each use, verify tester operation by measuring a known voltage. Never use the tester on a circuit with voltages that exceed the category based rating of this tester. Always adhere to local and national safety codes. Use personal protective equipment to prevent shock and arc blast injury where hazardous live conductors are exposed. Usage of this tester in any way other than that specified by the manufacturer can impair safe operation, resulting in severe injury or death.
| Brand | Klein Tools |
| SKU | KLEIN-TOOLS-ET40 |
| Manufacturer Part Number | TOOLS-ET40 |
| UPC | 092680691836 |
| Color | Orange |
| Length | 5.24 in (133 mm) |
| Primary Material | ABS |
| Batteries Included? | No |
| Length | 5.24 in (133 mm) |
| Width | 1.11 in (28 mm) |
| Height | 1.52 in (39 mm) |
| Weight | 2.3 oz (65 g) |
| Length | 10 in |
| Width | 8 in |
| Height | 5 in |
| Shipping Weight | 0.15 lb |
| Packaging | Retail Packaging |
| Warranty |
Klein Tools Limited Warranty Battery Junction Warranty |
| Return Policy | Return Policy |
Overall rating: 5.0 / 5 from 1 reviews.
Review topics: [].
"I keep this little tester handy in my AC power test bag. The unit is super simple to use and works like a charm for quick down and dirty testing. Make sure to have one of these in your test bag at all times"
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