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⚡ Test Smarter, Work Safer — The Voltage Tester Pros Trust!
The Klein Tools ET40 Digital AC/DC Voltage Tester delivers precise voltage readings across a broad range (12-240V AC, 1.5-24V DC) with bright LED indicators and DC polarity detection. Engineered for durability with a 3-meter drop resistance and CATIII 250V safety rating, it’s designed for professional-grade residential electrical troubleshooting. Featuring auto-off power saving and double insulation, this compact, battery-powered tester ensures reliable, safe, and efficient diagnostics every time.
| ASIN | B07P45RB8S |
| ASIN | B07P45RB8S |
| Batteries | 2 AAA batteries required. (included) |
| Best Sellers Rank | #53,302 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #114 in Voltage Testers |
| Brand Name | KLEIN TOOLS |
| Color | Orange |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,642) |
| Customer reviews | 4.5 4.5 out of 5 stars (1,642) |
| 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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