Hi All, I have an EDM 900 that is giving me crazy temp readings. I have been working with JPI support on it and am on my second probe, second location (now in fresh air inlet) and still the thing doesn't work. So......while I troubleshoot it; does anyone have a *cheap* but *functional and accurate* round windshield gauge I could use while I get this mess straightened out? I need something to pinch hit for fall IMC for obvious reasons.