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⚡ Test Smarter, Work Safer — The Voltage Tester Pros Trust!
The Klein Tools ET40 Digital AC/DC Voltage Tester is a professional-grade tool designed for precise measurement of AC voltages from 12 to 240 volts and DC voltages from 1.5 to 24 volts. Featuring bright LED indicators for voltage level and polarity, it offers rugged durability with a 3-meter drop resistance and CATIII 250V safety rating. Its energy-saving auto-off function and compact design make it an essential, reliable companion for electricians and DIY pros alike.












| ASIN | B07P45RB8S |
| ASIN | B07P45RB8S |
| Batteries | 2 AAA batteries required. (included) |
| Best Sellers Rank | #36,008 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #68 in Voltage Testers |
| Brand Name | KLEIN TOOLS |
| Color | Orange |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,640) |
| Customer reviews | 4.5 4.5 out of 5 stars (1,640) |
| Date First Available | 12 February 2019 |
| Department | Unisex Adult |
| Global Trade Identification Number | 00092644691836 |
| Included Components | No|Tester, User Manual, and 2 x AAA Batteries |
| Is Discontinued By Manufacturer | No |
| Item Dimensions | 13.3 x 3.9 x 2.8 centimeters |
| Item Length | 5.24 Inches |
| Item Type Name | Klein Tools ET40 Voltage Tester, AC Voltage, DC Voltage, and DC Polarity, Low Voltage Tester Includes Batteries |
| Item Weight | 2.3 Ounces |
| Item Width | 1.11 Inches |
| Item model number | ET40 |
| Manufacturer | KLEIN TOOLS |
| Manufacturer | KLEIN TOOLS |
| Maximum Operating Voltage | 240 Volts |
| Measurement Type | Voltmeter |
| Minimum Operating Voltage | 1.5 Volts |
| Model | ET40 |
| Number of Items | 1 |
| Part Number | ET40 |
| Power Source | Battery Powered |
| Product Dimensions | 13.31 x 3.86 x 2.82 cm; 65.2 g |
| Specification Met | CE |
| Style Name | 12/240 V |
| UPC | 092644691836 |
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