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⚡ Test Smarter, Not Harder — The Voltage Tester That Keeps Up With You
The Klein Tools ET45 Digital Voltage Tester offers comprehensive AC/DC voltage testing from 12-240V AC and 32-330V DC with bright LED indicators for clear readings. Its battery-free operation ensures uninterrupted use, while rugged IP44 dust and water resistance plus CATIII 350V safety rating deliver professional-grade durability and protection. Designed with built-in test lead holders and tamper-resistant outlet compatibility, this compact, pocket-friendly tester is the go-to tool for electricians and DIY pros who demand accuracy and reliability on every job.
| ASIN | B07NZS6DGS |
| Best Sellers Rank | #33,930 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #39 in Voltage Testers |
| Brand | KLEIN TOOLS |
| Brand Name | KLEIN TOOLS |
| Color | Orange |
| Customer Reviews | 4.5 out of 5 stars 946 Reviews |
| Global Trade Identification Number | 00092644691843 |
| Included Components | Tester |
| Item Dimensions | 4.45 x 1.19 x 1.05 inches |
| Item Type Name | Klein Tools ET45 Voltage Tester, AC Voltage and DC Voltage Tester, Low Voltage Tester Does Not Need Batteries |
| Item Weight | 1.8 ounces |
| Item dimensions L x W x H | 4.45 x 1.19 x 1.05 inches |
| Manufacturer | Klein Tools |
| Measurement Type | Voltmeter |
| Minimum Operating Voltage | 24 volts_of_alternating_current |
| Model | ET40 |
| Number of Items | 1 |
| Part Number | ET45 |
| Power Source | Voltage-powered |
| Specification Met | CE |
| Style | 24/240 V |
| Style Name | 24/240 V |
| UPC | 092644691843 |
| Warranty Description | See Manufacturer Website |
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.
A**.
Quick Check Tool
Great tool for checking voltage. Bought it for the toolbox in the bed of my pickup. I didn't buy a full blown multimetrer because they need batteries. It'll sit in the tool box for many months till I need it and the batteries would be dead or leaking with my luck. I use it to check voltage in the field or when I'm not home in my workshop. Probes are the right length, caps come off if you need more length to check a tamper resistant outlet. Basically foolproof. Lights up with the correct voltage on a scale. Be sure to test on a known live outlet before each use.
C**H
.
Nice item. Thank you.
C**G
Klein Tools ET45 Digital AC/DC Voltage Tester basic tool for the money.
Klein Tools ET45 Digital AC/DC Voltage Tester for both AC/DC & Polarity test, Auto Off, CATIII 350V-Class 2-Double Insulation, IP44 Dust & Water Resistant, No Batteries Needed. Range - 12-240 vac , 32-330V DC, LED Illumination. If you have it available when needed it is a good field tester.
S**Y
Highly practical for both professionals and DIYers — I would definitely buy it again! ⚡🛠️
⭐️⭐️⭐️⭐️⭐️ The Klein Tools ET45 Digital AC/DC Voltage Tester is accurate, easy to use, and excellent value for money. It provides reliable readings every time, and the design is straightforward and user-friendly. Highly practical for both professionals and DIYers — I would definitely buy it again! ⚡🛠️
J**A
HVAC service call quick use slot item
Keep in pocket as hvac tech. Can check for 24v call or high voltage quickly on service calls.
A**R
The wires are too short
and the lights are too dim to be used in a well-lit place
F**E
Will buy again
Awesome, it functions well..
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.
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**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
Trustpilot
2 months ago
3 weeks ago