Gamiss offers this LED Shower Water Temperature Celsius Display in Silver for $18. Coupon code "BBCARE" cuts it to $9.50. Plus, free shipping applies. It displays temperature in degrees of Celsius from 0° to 100°, and features 360° of rotation. Deal ends March 16.

Note: This item does not have a Fahrenheit (°F) option. It ships from China and may take two to five weeks to arrive.