Gas gauge calibration unit

I only buy at RS when I have to. In this case a few parts saved the minimum order and postage of ordering. The RS part choice is not too good. I typically order from Digi-Key or Mouser. The service and quality and price is great when doing larger orders.

When choosing parts for a design I often located part sources using findchips.com. Just enter part number, it comes up with the vendors that have it and the prices. I only used parts if they are readily available by a few vendors.

I think all parts will be between $5 and $10 for this. A bit early to tell, it is more important to prove it works well at this point.