The BEST Outlet Tester! (Klein RT390 Full Review)

The Klein RT390 isn’t just another circuit analyzer, it is packed with smart features for anyone serious about electrical work, or even the average DIYer. In this video, I give you a full hands-on review, showing you exactly how it works and why it might be the best tool in its class. From testing GFCI outlets to detecting wiring faults, load tests, measuring voltage, and even checking AFCI function, I’ll walk you through each feature in real time so you can see exactly what you’re getting. Whether you’re a homeowner looking to troubleshoot your own wiring or a professional electrician needing a reliable go-to tester, this tool is worth knowing about. I’ll share my honest thoughts on its performance, ease of use, and where it stands against other testers I’ve used. By the end, you’ll know if the Klein RT390 belongs in your toolbox. Amazon link to Klein Tools RT390: https://amzn.to/3J1HHcV Design and test your own circuit at https://electriciantutor.com, sign up for FREE and even get ALL your electrical questions answered instantly! Download my FREE DIY Electrical Troubleshooting bundle here: https://Ohmcheck.com You will find valuable troubleshooting guides on how to troubleshoot and repair electrical outlets, flickering lights, as well as how to install a 3-way switch! #KleinTools #KleinRT390 #ElectricalTools #CircuitTester #OutletTester #GFCITester #HomeElectrical #ElectricalTesting #DIYElectrical #ElectricianTools #ElectricalSafety DISCLAIMER: This video and description contain affiliate links, which means that if you click on one of the product links and make a purchase, I’ll receive a small commission.