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⚡ Test with confidence, work with pride — Klein Tools ET40 keeps you powered up and ahead.
The Klein Tools ET40 Digital AC/DC Voltage Tester is a compact, professional-grade device designed for precise voltage measurement from 12 to 240 volts AC and 1.5 to 24 volts DC. Featuring bright LED indicators for voltage level and polarity, it offers rugged durability with drop resistance and IP4 dust/water protection. Its auto-off function conserves battery life, while CATIII 250V safety certification ensures reliable protection. Ideal for residential electrical troubleshooting, this tester combines trusted Klein craftsmanship with modern convenience.
| Asin | B07P45RB8S |
| Batteries | 2 AAA batteries required. (included) |
| Best Sellers Rank | #224 in Voltage Testers |
| Date First Available | 12 February 2019 |
| Department | Unisex Adult |
| Is Discontinued By Manufacturer | No |
| Item Model Number | ET40 |
| Manufacturer | KLEIN TOOLS |
| Product Dimensions | 13.31 x 3.86 x 2.82 cm; 65.2 g |
User
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.
User
works great
exactly what i need , fast easy and no batteries needed so i can leave it in the car in the winter
User
Buenísimo.
¿Quieres saber si hay voltaje el tu circuito? Este es el probador indicado. Tienes las tres "B", bueno, bonito y barato.
User
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.
User
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
1 month ago
1 week ago