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⚡ Test smarter, work faster—never miss a beat with Klein Tools ET45!
The Klein Tools ET45 Voltage Tester is a compact, battery-free device designed for professional-grade AC and DC voltage testing. It covers a wide voltage range (24V-240V AC, 32V-330V DC) with four sensitivity levels, features a built-in lead holder for tamper-resistant outlet testing and storage, and is built to endure drops up to 3 meters. Rated CATIII 350V with IP44 ingress protection, it’s engineered for durability and convenience on any jobsite.












| ASIN | B07NZS6DGS |
| Best Sellers Rank | #21,236 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #46 in Voltage Testers |
| Brand | KLEIN TOOLS |
| Brand Name | KLEIN TOOLS |
| Color | Multi |
| Colour | Multi |
| Compatible Devices | Electrical circuits within the voltage range of 24V to 330V |
| Country Of Origin | China |
| Customer Reviews | 4.5 out of 5 stars 1,637 Reviews |
| Global Trade Identification Number | 00092644691843 |
| Included Components | AC/DC Voltage Tester: Tester |
| Item Dimensions | 11.3 x 3 x 2.7 centimeters |
| Item Length | 4.45 Inches |
| Item Type Name | Voltage Tester, AC Voltage and DC Voltage Tester, No Batteries Needed |
| Item Weight | 1.8 Ounces |
| Item Width | 1.19 Inches |
| Item dimensions L x W x H | 11.3 x 3 x 2.7 centimeters |
| Item weight | 1.8 Ounces |
| Manufacturer | KLEIN TOOLS |
| Maximum Operating Voltage | 330 Volts |
| Measurement Type | Voltmeter |
| Minimum Operating Voltage | 24 Volts (AC) |
| Model | ET40 |
| Number of Items | 1 |
| Part Number | ET45 |
| Power Source | Applied Voltage |
| Power source | Applied Voltage |
| Specification Met | CE |
| Style | 24/240 V |
| Style Name | 24/240 V |
| UPC | 092644691843 |
| Unit Count | 1 Count |
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