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⚡ Test with confidence, work with power!
The Klein Tools RT110 Receptacle Tester is a precision instrument designed for North American AC outlets, featuring a 5mm probe diameter and 5cm probe length for accurate and accessible testing. Built with a durable 6.7mm thread diameter, this corded electric tester offers reliable, instant visual feedback to ensure proper grounding and wiring. Trusted by professionals for over 5 years, it combines rugged American craftsmanship with user-friendly design to keep your electrical work safe and efficient.












| ASIN | B01AKX3AYE |
| Best Sellers Rank | #295,709 in Home Improvement ( See Top 100 in Home Improvement ) #63 in Circuit Testers |
| Brand | KLEIN TOOLS |
| Brand Name | KLEIN TOOLS |
| Colour | Orange |
| Country of Origin | USA |
| Customer Reviews | 4.8 out of 5 stars 3,378 Reviews |
| Global Trade Identification Number | 00092644690266 |
| Item Dimensions | 14 x 8.9 x 4.6 Centimeters |
| Item dimensions L x W x H | 14 x 8.9 x 4.6 Centimeters |
| Manufacturer | Klein Tools |
| Measurement Type | Wire Tracer |
| Model Number | RT110 |
| Part Number | RT110 |
| Power Source | Corded Electric |
| Power Source Type | Corded Electric |
| Specification Met | CE |
| UPC | 092644690266 |
J**S
Reliable Tester With Years of Solid Performance
I’ve always liked this brand and have bought several of their products through Amazon. I use this outlet tester constantly as a quick visual check to confirm our ESD protective mats are properly grounded for sensitive circuit‑chip work. Electricians have told me that older versions of testers like this used to overheat or fail internally, and I remember experiencing that years ago too — but times have definitely changed. This model has been excellent. I’m approaching 5+ years with it, and it’s still working reliably.
W**R
Does what it says. Simple, efficient
Does what it says. Simple, efficient
M**E
Works. No issues
Works. Easy to use. No issues.
C**Z
Muy buen producto y marca.
Muy buen producto, me ha ayudado mucho a instalaciones eléctricas para hacer comprobaciones rápidas. Lo recomiendo mucho sin problemas, posiblemente lo único malo es que las instrucciones no están en español solo ingles, no tengo problemas para leerlo pero seria bueno tenerlo en español de igual manera.
D**D
Good product!
it is a product that very easy to be used without special training.
Trustpilot
5 days ago
3 weeks ago