Chard wrote:could you use an infra red thermometer? ive been looking for an excuse to buy one of
these for ages! ha ha

I was just playing with one at my LHBS, amazing! (He uses it to take the temp of the grain while solar toasting malt) I was taking the surface temp of the floor, the cat*, the wall, my hand ... not really necessary, but I want one too!
Using it for the fermenter temperature seems like a good excuse! The price has really come down recently.
*she was the same temp as the surrounding surfaces because fur is a good insulator - but I was careful not to point the laser at her eyes.
Sommeliers recommend that you swirl a glass of wine and inhale its bouquet before throwing it in the face of your enemy.