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🔧 Power Up Your Testing Game!
The Klein Tools ET45 Voltage Tester is a professional-grade device that tests both AC and DC voltages without the need for batteries. It features a built-in test lead holder for safe storage and is designed for easy use with tamper-resistant outlets. Compact and lightweight, this tester is perfect for electricians and DIY enthusiasts alike.












| ASIN | B07NZS6DGS |
| Best Sellers Rank | 138,209 in DIY & Tools ( See Top 100 in DIY & Tools ) 192 in Voltage Testers |
| Brand | KLEIN TOOLS |
| Colour | Orange |
| Compatible Devices | Electrical circuits (24V to 330V) |
| Country Of Origin | China |
| Customer Reviews | 4.4 out of 5 stars 892 Reviews |
| Global Trade Identification Number | 00092644691843 |
| Included Components | AC/DC Voltage Tester: Tester |
| Item Dimensions | 11.3 x 3 x 2.7 centimetres |
| 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 centimetres |
| Item weight | 1.8 Ounces |
| Manufacturer | Klein Tools |
| Manufacturer Part Number | ET45 |
| Maximum Operating Voltage | 330 Volts |
| Measurement Type | Voltmeter |
| Minimum Operating Voltage | 24 Volts (AC) |
| Model Number | ET40 |
| Power Source | Not Battery Powered |
| Power source | Not Battery Powered |
| Specification Met | CE |
| Style | 24/240 V |
| Style Name | 24/240 V |
| UPC | 092644691843 |
| Unit Count | 1.0 count |
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.
J**N
Great little tester
Why did you choose this product over others?: Fantastic product, use everyday, like how it’s pocket sized, just wish it did a continuity audible beep Functionality: Great for proving dead on a circuit when you haven’t got your tool bag to hand Value for money: Very good product for the price
T**G
Mini backup tester
This tester really is small ( I'd call it a pocket tester ) and that's the beauty of it - Easy to carry with you or good as a little backup tester as there's no batteries required with it - It's nothing fancy, just a large LED display and no audible tone, but it does the job - The probe shrouds ( Grey on mine ) are easily removable for socket outlet testing ( I will mention though that I trimmed the RED & BLACK probe insulation back a couple of mm and formed a bevel before the probe tips and, for me, this greatly improved it's userbility for socket testing - For the money you really can't go wrong with this little tester.
N**T
Very small (smallest tester I ever saw)
Short leads but the item is so small it fits in your pocket like a set of keys. If you want really small testers to give a clear indication of voltage these could be right up your street. A few sparks loved how small they were . Ideal for occasional use or part of a survey kit
W**L
It’s so cute
Perfect for what I need it for. Fits in the big screwdriver slot on my work trousers so never without it. Lights are bright even in daytime very easy to see. Very light weighs virtually nothing. This has replacement my NCVT and also the temptation to use the NCVT to test dead when I’m in a rush
T**T
Great tool
Great tool to use to check for power in a pocket size device
M**N
Tester good , leads way to short
Good little tester but the leads are way too short to be practical
A**W
Small and handy
Does the job
S**D
works great
exactly what i need , fast easy and no batteries needed so i can leave it in the car in the winter
J**Z
Buenísimo.
¿Quieres saber si hay voltaje el tu circuito? Este es el probador indicado. Tienes las tres "B", bueno, bonito y barato.
L**G
A nice alternative to multimeter
Sometimes you don't want to bring out the multimeter just to test the voltage. This is a good alternative.
R**J
beau produit
lecteur facile d'utilisation et très bien fait
F**E
Will buy again
Awesome, it functions well..
Trustpilot
2 weeks ago
3 days ago