Digital Shower Thermometer
This digital shower thermometer attaches to most standard 1/2" hoses to give all the Mama, Papa, and Baby Bears out there the perfect temperature setting for the most perfect part of their day. It's pretty cheap too, so, Goldilocks, get your own!
The thermometer is electricity- and battery-free, powered by your waterflow and a temperature sensor inside the device. Its LED screen also rotates 360 degrees, so you can point it in whatever direction suits you. Temperature readout range is 32 to 212 degrees F.