Northern Tool Ratings and Reviews
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Automotive Diagnostics Reviews

Overall Rating:5 out of 5 stars.
"I was testing a buddy's battery and a mobile mec. was laughing at my little "toy tester" he got his $389 tester out that has heat coils and produces heat and a SPARK if not a good connection. His said"... (read full reviews)
Overall Rating:5 out of 5 stars.
"i bought this to use on all of our trucks/equipment. it works great and comes in handy when you want to keep your equipment running with good coolant. great buy!"... (read full 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 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.
"fabulous!, easy to use, and you don't need to be a rocket scientist to use..."... (read full reviews)
Overall Rating:5 out of 5 stars.
"Excellent tools for the money. I bought 5 units"... (read full reviews)
Overall Rating:4.9 out of 5 stars.
"This saves me the time of having to start up the full service computer to just pull or erase codes. I can also tell if the all the triggers are set for the NYS inspection. You will not get any other"... (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.
"This is the perfect tester to have when you have a boat, truck, car, and everything else that has a battery. Works great for testing batteries while they are still in the boat vs. having to pull them"... (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:4.1 out of 5 stars.
"Ordered this to help out with engine breakin. Its well constructed and does the job its intended for. I needed a fuel tank for a mini bike project I'm working on and it fit the bike perfect, much to"... (read full reviews)
Overall Rating:4 out of 5 stars.
"This mirror was great until I broke it(its glass with an aluminum backing around it). It helped me preform several automotive & some tight plumbing repairs as well.. It would take some patience to"... (read full reviews)
Overall Rating:3.3 out of 5 stars.
"We have 3 vehicles and i wanted save money on our auto repairs so i brough my code reader at a great price. So whenever a check engine light comes this tool comes in handy and saves our family the"... (read full reviews)
Overall Rating:3 out of 5 stars.
"I have used this tester on 5V, 6V, and 12 Volt automotive electrical systems with no complaints. It seems solid and well built, especially compared to other testers I have had in the same price"... (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)
Overall Rating:3 out of 5 stars.
"these are great, i use them everyday in the shop.----------"... (read full reviews)
Overall Rating:2.7 out of 5 stars.
"Of the few reviews that I saw of this (old Wel-Bilt brand), I didn't see any that specifically addressed it's operation. So, I felt compelled to leave one. First off, the description appears that this"... (read full reviews)