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⚡ Test Smarter, Work Safer — The Klein ET40 Lights the Way!
The Klein Tools ET40 Digital Voltage Tester is a compact, rugged device designed for professionals and savvy DIYers alike. It measures AC voltages from 12 to 240 volts and DC voltages from 1.5 to 24 volts, with bright LED indicators for voltage level and polarity. Engineered for durability with drop resistance and double insulation, it also features an auto-off function to extend battery life. Trusted by electricians for over 160 years, Klein Tools delivers precision and reliability in a pocket-sized tester that’s essential for safe, efficient electrical diagnostics.
| ASIN | B07P45RB8S |
| Best Sellers Rank | #69,016 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #148 in Voltage Testers |
| Brand | KLEIN TOOLS |
| Brand Name | KLEIN TOOLS |
| Color | Orange |
| Colour | Orange |
| Customer Reviews | 4.5 out of 5 stars 1,645 Reviews |
| Global Trade Identification Number | 00092644691836 |
| Included Components | No|Tester, User Manual, and 2 x AAA Batteries |
| Item Dimensions | 13.3 x 3.9 x 2.8 centimeters |
| Item Length | 5.24 Inches |
| Item Type Name | Klein Tools ET40 Voltage Tester, AC Voltage, DC Voltage, and DC Polarity, Low Voltage Tester Includes Batteries |
| Item Weight | 2.3 Ounces |
| Item Width | 1.11 Inches |
| Item dimensions L x W x H | 13.3 x 3.9 x 2.8 centimeters |
| Item weight | 2.3 Ounces |
| Manufacturer | KLEIN TOOLS |
| Maximum Operating Voltage | 240 Volts |
| Measurement Type | Voltmeter |
| Minimum Operating Voltage | 1.5 Volts |
| Model | ET40 |
| Number of Items | 1 |
| Part Number | ET40 |
| Power Source | Battery Powered |
| Power source | Battery Powered |
| Specification Met | CE |
| Style | 12/240 V |
| Style Name | 12/240 V |
| UPC | 092644691836 |
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
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.
J**Z
Buenísimo.
¿Quieres saber si hay voltaje el tu circuito? Este es el probador indicado. Tienes las tres "B", bueno, bonito y barato.
Trustpilot
2 weeks ago
3 weeks ago