I bought one of these for the type 1 engine recently at $49 plus shipping. The product seems very well made, and works well. Haven't checked calibration, but add says +/- 1% over the full span of 50 to 300 degrees. The bimetal element is dampened with silicone for minimum pointer vibration and maximum heat transfer. Oil level marks are provided on the stainless steel shaft. This is a direct replacement for your original oil dipstick, no modifications required for use. If I have one complaint, which I don't, it would be the gauge is a little small. It's 1" across. Other than that, I think it's an inexpensive, easy way to keep track of that all important oil temp. Contact info. Mainely, Custom by Design (207) 698 7646, email sales@mainelycustombydesign.com Eddie
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