Ive been using my aeroforce gauge now for 6 months and am very happy with it
The Aeroforce gauge can be setup to show two things at once or cycle through as many as you like - I mainly use it to monitor battery voltage and water temperature on road and for off road I have it cycling through a bunch more;
When im in the slop I select water temperature and steering angle
water temp so I can see if i have clogged up the radiator with mud as the std JK gauge will show "12oclock" all is well for any temperature between 85 and 112 degrees C
and steering angle so i know when I have the wheels pointing straight as those of you who wheel in the mud will know - sometimes you can have the wheel 1 complete turn from straight and have almost NO idea!
When winching I use the aeroforce gauge to bump up the idle - you can input what ever RPM you want - I usually input 1850 which is a apparently the rpm needed to get maximum output from the alternator.
You can program your Jeep for different gears and different tyre size to correct you car computer and speedo readings.
Reading and clearing DTC - fault codes
Another awesome feature is - the aeroforce gauge has 2 analog inputs that you can connect whatever you want to - I am planning to install a long range fuel tank and will connect the sender up to the 1st of the 2 analog inputs - i have done some research and have determined that the gauge will display anything - 0 - 5v.
it is brilliant, I still have my scan gauge but now it lives in my tool box and comes out only when I want to assist my friends in diagnosing their Heaps.
There are 2 super bright Led's that can be configured to light up in any condition or combination of conditions - I have mine set to light up on high temperature (over 100 degrees C) and / or high RPM.
cheers Hunty
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ps
last pic shows ipad in its old location