Dreambaby Bath & room Thermometer - Crocodile
This little guy is a great bath and room thermometer. If it's blank, don't worry, it will turn itself off after 30 minutes (that's a long bath) to save battery but you can easily switch it back on. It will check the bath temp every 10 seconds to make sure everything is A-OK.
Being by Dreambaby - you know safety is number 1. Battery is safely secured and leak-proof, and the Crocodile is BPA-free.