Radiator Hose Temp Sensor Adaptor

All, Thanks, I saw those and the black anodized 38mm looks like a good choice or would a 42mm be better? Just measured my rad hose and it is slightly larger than a 1.5. It indicates a 1/8 npt though for the probe thread. My probe is a 3/8th npt. Is that your same size. Where did you place the probe at? Upper Rad Hose top, mid, bottom?

Thanks,
Marion