Well I learned something new today. All I have to check temp. with is my floating thermometer and was going to check temp. and SG today using my Wine thief/Test jar combo. When I slid my thermometer into the wine thief it broke and all the little weight beads filled the bottom of mywine thief which took me about 15 min to get all glass and beads out of. Now before you call me a complete idiot I didn't just drop it in strait up and down I held it sideways put thermometer in then tilted it up until it just started to slide. It took very very little to break this thermometer. From now on the combo thief/sample jar will be setting in the bottle with wine in it before I drop my thermometer or hydrometer.