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⚡ Test Smarter, Work Safer — The Voltage Tester Pros Trust!
The Klein Tools ET40 Digital AC/DC Voltage Tester is a compact, professional-grade tool designed for precise residential electrical diagnostics. It measures AC voltages from 12 to 240 volts and DC voltages from 1.5 to 24 volts, featuring bright LED indicators for voltage level and polarity. Engineered for durability with drop resistance, double insulation, and dust/water protection, it also conserves battery life with an auto-off function. Trusted by professionals since 1857, this tester combines accuracy, safety, and convenience in one pocket-sized device.
| ASIN | B07P45RB8S |
| Best Sellers Rank | #82,288 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #190 in Voltage Testers |
| Brand | KLEIN TOOLS |
| Brand Name | KLEIN TOOLS |
| Color | Orange |
| Colour | Orange |
| Customer Reviews | 4.5 out of 5 stars 1,609 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 |
| 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.
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.
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.
G**.
Muy practico y de buena calidad
Muy bien! Solo que los cables están muy cortos para medir y en las características menciona que no hay modo de reparación por alguna eventualidad. Es decir que son desechables. Pero aún así son de buena calidad!
Trustpilot
2 weeks ago
1 month ago