⚡ Stay wired right, every time — don’t get left in the dark!
The Klein Tools RT210 Outlet Tester is a professional-grade device designed to quickly detect common wiring problems and verify GFCI outlet functionality. Engineered for durability with a 6.6-foot drop resistance and operable across a broad temperature range (32°F to 140°F), it supports standard 110/125V AC outlets. Lightweight and compact, it features an easy-to-read chart for fast diagnostics, making it an essential tool for electricians and safety-conscious professionals aiming to ensure electrical safety with confidence.
| Brand | KLEIN TOOLS |
| Power Source | Hand Powered |
| Style | GFCI Testing |
| Color | Black/Orange |
| Item Weight | 1.36 ounces |
| Item dimensions L x W x H | 5.3 x 3.8 x 1.5 inches |
| Min. Operating Voltage | 110 |
| Specification Met | Cat Ii 300v |
| Upper Temperature Rating | 140 Degrees Fahrenheit |
| UPC | 092644690273 |
| Manufacturer | Klein Tools |
| Global Trade Identification Number | 00092644690273 |
| Part Number | RT210 |
| Product Dimensions | 5.3 x 3.8 x 1.5 inches |
| Item model number | RT210 |
| Is Discontinued By Manufacturer | No |
| Size | Pack of 1 |
| Material | Other |
| Pattern | DEVICE |
| Item Package Quantity | 1 |
| Measurement Accuracy | See Instructions Manual for Measurement Accuracy |
| Special Features | Convenient Chart on the Tester |
| Included Components | GFCI Outlet Tester |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | This product is warranted to be free from defects in materials and workmanship for a period of two years from the date of purchase. This warranty does not cover damage which occurs in shipment or failure which results from alteration, tampering, accident, misuse, abuse, neglect, or improper maintenance. |
N**.
Simple to Use - Not Too Expensive
I purchased this based on a YT review. No issues, no complaints, no second thoughts. I've never owned one of these, so I went with the slightly cheaper version. Works great. One of those tools you don't use all the time, but very nice to have when you need it.
T**Y
Favorite plug tester.
My favorite plug tester. It has the gfi test buttons, it’s small and reads pretty easy. I’ve tried other Klein versions (had the big LCD screen one, but too bulky!), the fluke (also too bulky for me), the harbor freight one seems to be modeled after this one, the Milwaukee one (also too big IMO)
B**B
100 % as described no issues
Without a doubt worth the money works to a T and gives you exact wire configurations that are incorrect
J**K
Klein tools are the best.
Does what it says and it's Klein. It's a win win deal.
Z**N
Life-Saver Around the House – Found a Dangerous Fault!
I'm no electrician, but I wanted to make sure everything was safe around my home. Got this Receptacle Tester, and boy, did it come in handy! Found a bad GFCI next to my sink that could've ended up being really dangerous. I only use this thing once a year or so to test stuff, but it's worth every penny. The chart on it was super helpful – made it easy for me to figure out what was wrong. Build quality seems solid too. I'm giving this 4+ stars. Honestly, for the peace of mind, you can't beat it.
K**4
Works for both 15 amp or 20 amp outlets
This was very easy to use. A safe way to check your outlets are working correctly. This fits a 15 amp or 20 amp outlet. I had a new 20 amp electrical line ran into one of my rooms and this is a super easy way to check that their work was completed properly.
D**Y
A Must-Have Addition to Your Toolbox
I can't stress enough how essential this tool is for every toolbox. Initially, I purchased it to simply test the exterior socket, but it has proven to be so much more than that. It quickly became my go-to tool for various tasks around the house. Its versatility and efficiency have truly impressed me, making it a staple in my collection. I now find myself reaching for it constantly, finding new uses for it each time. I highly recommend adding this tool to your arsenal; you never know when it will come in handy!
W**O
Easy to use
Smart item to have.
TrustPilot
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