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⚡ Test Smarter, Work Safer — The Pro’s Choice for Outlet Confidence
The Klein Tools RT110 Outlet Tester is a professional-grade device designed to quickly identify common wiring problems in North American 110/125V AC outlets. Featuring a clear light sequence for easy interpretation, UL and CSA certifications for safety, and a durable build that withstands drops up to 6.6 feet, it operates reliably across a wide temperature range (32°F to 140°F). Trusted by professionals since 1857, this compact, hand-powered tester ensures your electrical outlets are wired correctly and safely every time.
| ASIN | B01AKX3AYE |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #13,102 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #25 in Circuit Testers |
| Brand | KLEIN TOOLS |
| Color | Factory |
| Customer Reviews | 4.8 4.8 out of 5 stars (3,433) |
| Date First Available | January 14, 2016 |
| Finish | Brushed |
| Global Trade Identification Number | 00092644690266 |
| Included Components | Receptacle Tester |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 1.9 ounces |
| Item dimensions L x W x H | 5.5 x 3.5 x 1.8 inches |
| Item model number | RT110 |
| Lower Temperature Rating | 32 Degrees Fahrenheit |
| Manufacturer | Klein Tools |
| Material | Plastic |
| Measurement Type | Voltmeter |
| Min. Operating Voltage | 110 Volts |
| Number Of Pieces | 1 |
| Part Number | RT110 |
| Pattern | Tester |
| Power Source | Hand Powered |
| Product Dimensions | 5.5 x 3.5 x 1.8 inches |
| Shape | Rectangular |
| Size | One Size |
| Specification Met | CSA |
| Style | Standard |
| UPC | 092644690266 |
| Upper Temperature Rating | 140 Degrees Celsius |
| Warranty Description | 1 year manufacturer |
S**O
Easy to comprehend
Works good. Easy to understand
M**E
Works
Works perfectly, live in an older house, was not sure if the groud was good or not, tested correctly.
L**P
Easy Use & Clear Instructions
Easy to read and can't get any better. Appreciate the fast shipping!
E**E
A must have
Nice gadget for a electrician's tool kit and takes all guess work out for us DIYers
Z**K
Probably the best one for the price
I was replacing a previous unit which now receives on a modest review score. So I read reviews of several models before buying this one. Of course, it it not possible to confirm that it is working properly unless you intentionally mis-wire an outlet to see what it shows. I did not do this, which explains the 4-star rating I gave it for Accuracy; it may well deserve 5 stars. However I can report that the display is easily visible and shows that the power outlets I tested were all good (no faults). It seems well made and should not crack apart unless stressed greatly. I did not do this either!
I**3
it works as expected
so far, so good; works as advertised
E**N
Sturdy little tool easy to use
Great value works great like the table printed on unit.
S**H
Electrical tester for outlets
Great Product
W**R
Does what it says. Simple, efficient
W**7
Funciona bien. Revise todos los contactos de mi casa.
M**E
Works. Easy to use. No issues.
M**L
Very useful around my old house built in 1967
C**Z
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.
Trustpilot
1 week ago
4 days ago