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⚡ Test smarter, not harder — Klein Tools ET45 keeps you powered up and in control!
The Klein Tools ET45 Voltage Tester is a compact, battery-free device designed for reliable AC/DC voltage testing from 24V to 330V. Featuring a built-in lead holder for tamper-resistant outlet testing, rugged drop resistance, and IP44 dust/water protection, it’s engineered for professionals who demand accuracy and durability on the go.












| ASIN | B07NZS6DGS |
| Best Sellers Rank | #125,547 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #294 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 1,622 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 week ago
3 days ago