No tools required for installation, small size fits nearly anywhere in the vehicle
Customer Reviews:
Excellent customer service 
I purchased a Scangauge II for my 2004 Hyundai XG350L and when I plugged it in my speedometer stopped working and I got a zero MPG reading. I tried it in a different vehicle, a Chevy Tahoe from work, and it worked perfectly. I called Linear Logic and they rep told me that some manufacturers didn’t follow the OBD spec but the unit works in those vehicles if a couple of pins are removed. I asked which pins so I could remove them and the rep told me not to do that because then the cable wouldn’t work in most other vehicles, they would send me another cable with the pins removed. I gave him my address and was waiting for him to ask me for a credit card number but they’re sending the second cable with no charge to me. That’s what I call exceptional customer service. The problem isn’t Linear Logic’s, the problem is Hyundai’s and yet Linear Logic is making it right. Linear Logic is an outstanding company.
This is good…Yet a bit costly. 
I’ve used this product with some solid success, yet I’ve actually found that this gas crisis is so out of hand, I’ve resorted to drastic measures.
Recently I converted my 04 Cadillac to utilize water as fuel from an easy to install kit, I obtained online from a company called [..]
ScanGauge II very usefull thing
I don’t have board computer in my Nissan Almera 2000 model, and my primary goal about this tool is to monitor fuel consuption. I can watch at the same time 4 sensors or trip calculations, like how much fuel I have in tank, what is current fuel usage, temperature of cooling liquid, approx. fuel usage since tank refill, … It has diagnostic features also. It’s size is not so big, it can be attached on many places on dashboard. Very good and usefull gadget
The only gauge youll ever need
At first I justified buying this because in the long run, i could chnge my driving habits for better fuel economy, saving me money. The instantaneous fuel economy and throttle % indicators have helped me accomplish this. I am now getting better than the EPA ratecd fuel economy on my car. EPA city: 20 Highway: 27 Combined: 23. I am usuing this to get an average of 33 mpg. This is great now that gas prices have soared, and that is with no other modifications to my car than plugging this into it, and adjusting my driving style. Considering the amount of driving I do (90 miles/day typical), the scangauge is priceless.
Not only does it give fuel economy, It also has a variety of other sensors. Anything the car’s computer knows, it can tell you. Coolant temperature, RPM (great since my car dosen’t have a tachometer), MPH, gallons of gas/hour, and many more. It also stores trip data, such as top speed (great to know if you have a kid driving), avg speeed, top RPM, total distance, gallons of gas used, and avg fuel economy, not only for the current trip, but for that day and the previous day, and also for the tank of gas. It also lets you know if it has been disconnected from the car’s computer at any point during the day.
In addition to these functions, it also provides error codes that can easily be referenced online, allowing you to diagnose and fix your own problems instead of taking it to a mechanic who will probably charge a fee just to plug it in. I printed them out so i can easily decipher whats wrong in case something happens while I’m on the road
I’ve had this for 3 weeks, and I think its a great product which is consistent and indispensible once you have one.
SG II rocks 
everything is expected except one thing. the scan feature doesn’t seems to work in my car. when i plug in it read no codes but the bottom says “-NOT READY-” so i donno if it my car or the scanner is like that (which shouldn’t be according to the manual). i will try to scan it in some problem car sometimes to verify it. all other features work really well. my car is 02 subaru outback, btw.
