Northern Tool Ratings and Reviews
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Automotive Diagnostics Reviews

Overall Rating:5 out of 5 stars.
"This item worked as expected and was as good as any I've used. A good tool for the price. The case made for convenient storage."... (read full reviews)
Overall Rating:5 out of 5 stars.
"This tester is just what I needed to help diagnose no starts. No more shocks trying to hold the plug by hand."... (read full reviews)
Overall Rating:5 out of 5 stars.
"This product is great for the beginner and expert alike. Your only limited by your own knowledge. The price is very reasonable for the product."... (read full reviews)
Overall Rating:5 out of 5 stars.
"Excellent tools for the money. I bought 5 units"... (read full reviews)
Overall Rating:4.7 out of 5 stars.
"Thi is an excellent kit for testing light switches -wiring-heat temperatur-etc... - can be used on appliances-air conditioner. This kit has been both accurate and depedable for me .The literature with"... (read full reviews)
Overall Rating:4.6 out of 5 stars.
"Easy to use, clear directions, worked for my BMW. Diagnosed the problem with this and save money with buy the tool"... (read full reviews)
Overall Rating:4.5 out of 5 stars.
"Complete and very helpful product. All in one. I was looking for a complete compressor gauge I never find it or always inclompete. But this one have everything I need."... (read full reviews)
Overall Rating:4.5 out of 5 stars.
"It.s compact size makes it easy to hold an put in your shirt pocket, and has good duriblity. Not big and bulky like other models."... (read full reviews)
Overall Rating:4.4 out of 5 stars.
"I purchased this Feb 10, 2015. I went to use it today (April 9) and the amp needle would not work. The product was almost 2 months out of warrantee to the day. I've tested maybe 6 batteries over the"... (read full reviews)
Overall Rating:4 out of 5 stars.
"I was a professional mechanic at one point. Of course when I get a new toy I have to play with it. Tested this out on a few vehicles when I got it and it works as it should."... (read full reviews)
Overall Rating:3.8 out of 5 stars.
"Tried to save a few bucks with this test stand. It's going back. No accommodation for radiator! Asking for trouble with your new engine!! Really small inadequate fuel tank. Poor quality gauges and"... (read full reviews)
Overall Rating:3.5 out of 5 stars.
"With the ability to retrieve codes and focus on the problem without guess work and saving $95.00 a pop to be done by local shops. We can repair most issues in house and pin point problems quickly with"... (read full reviews)
Overall Rating:3.3 out of 5 stars.
"Leads where good for low volts, didn't just fall apart. The price was good."... (read full reviews)
Overall Rating:3 out of 5 stars.
"The display is small but adequate. Simple screw holes are provided for mounting. It comes with a tiny magnet in an envelope. You're supposed to glue the magnet to the shaft of what you are metering."... (read full reviews)