Please note that the PICTURE UPLOAD function is not working. The iBoats Forum Moderators are working with the system administration folks at the parent company to get the issue resolved. This happened about a year ago and here we are again. In the meantime you can post photos as links to a picture hosting site of your choice. We are sorry about the inconvenience and will advise when the issue is resolved. Thank you for your patience.
The low end ones are fine. They are the greatest thing since sliced bread. You can aim them at any point on the engine and find hot spots if they exist. One of these also confirmed that my sending unit was goofy. I got a new sending unit and my guage worked perfectly, confirmed, of course, by my nifty infrared thermometer.
btb, I am not convince that HF one is the one you want. You want one more like this:
