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The Klein Tools ET45 Voltage Tester is a compact, battery-free device designed for professional-grade AC and DC voltage testing. It covers AC voltages from 24V to 240V and DC voltages from 32V to 330V across four levels, featuring a built-in test lead holder optimized for tamper-resistant outlets and easy storage. Durable and portable, it withstands 3-meter drops, offers IP44 dust and water resistance, and includes a pocket clip for everyday carry—making it an indispensable tool for electricians and managers who demand reliability and efficiency.












| ASIN | B07NZS6DGS |
| Best Sellers Rank | #129,661 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #307 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 1,628 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 |
| 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 |
J**S
It is absolutely necessary and perfect.
This voltage tester was a must have for me. I feel more at ease putting my trust in this product than I do a voltage pen, therefore since I lost my previous tester I purchased this affordable one. Absolutely perfect for checking safe isolation and betteries. Very please with this handy pocket tester.
R**0
Good Klein quality
Good voltage safety tool.
R**J
beau produit
lecteur facile d'utilisation et très bien fait
J**Z
Buenísimo.
¿Quieres saber si hay voltaje el tu circuito? Este es el probador indicado. Tienes las tres "B", bueno, bonito y barato.
R**N
Small and handy
Small and compact, can easily have in a pocket or small pouch. And the addition of no batteries required means less maintenance, the low price also makes it very affordable to replace should it became damaged or faulty. However I doubt the latter as klein is know for quality tools.
Trustpilot
1 month ago
1 month ago