If you are looking for an inexpensive but reliable relay tester for car repair, this relay tester is a good choice. One complaint is that the tester is louder than the testers of most competitors. Also, this tool doesn't test all of the common relays.
COLOR TREE 12V Electronic Automotive Relay Tester Auto Car Diagnostic Battery Checker Tool Relay Tester Automotive Kit with Storage Bag
This relay tester is an electronic instrument for testing relay. It will not damage the relay, but it must remove the cover and pull out the coil.
The Foxwell NT604 Elite Car Scanner is affordable and a great choice for anyone needing to scan a car. It has a clear display and easy-to-understand menus, and is reasonably priced. It does a nice job of diagnosing problems with your car's various systems, and it does it all from the comfort of a laptop, phone or tablet rather than needing to lug around a bulky desktop diagnostic scanner.
MOTOPOWER MP69033 Car OBD2 Scanner Code Reader Engine Fault Code Reader Scanner CAN Diagnostic Scan Tool for All OBD II Protocol Cars Since 1996
It is able to read and clear check engine information which is part of OBDII system, but it cannot work with non-OBDII systems, including ABS / Airbag / Oil Service Light, etc.
This great little scanner works in either receiving or transmitting modes. It also has 4GB of memory space to keep all your recorded data secure and easy to find.
Electronic Specialties' compact relay adapter kit is great for troubleshooting electrical problems in your car.
While a pricier connector kit, our testers thought this comprehensive set was well worth the cost. It included connectors for Chevy, Ford, Chrysler, and GM. You could test almost any vehicle.
Easy to use and accurate, the Electronic Specialties EZ Tach is an inexpensive, reliable choice for most any homeowner who needs to check the RPM on an engine, or measure engine revolutions on an automotive engine.
Autel Maxicom MK808 is the most powerful and feature-rich OBD2 scanners in the market, the Maxicom MK808 is the latest and the most powerful Diagnostic Tool in the MaxiSys series, empowers you to read and clear diagnostic trouble codes, perform extensive engine diagnostics, view live data, and more.
The Electronic Specialties Automotive Connector Test Kit was one of the hardest-working kits in our test group. Its excellent adaptability makes it useful not only for mechanics but also electricians looking to troubleshoot in unfamiliar spaces.