Blue Devil Thermometer Fahrenheit Celsius B8155C 7217

Blue Devil pool spa thermometer with large, easy to read numbers.

Snap on cap instantly converts this to a floating thermometer. Remove the cap, and it becomes an underwater thermometer. There is a yellow area above 104 degrees F as a caution area for spa users.

Displays both Fahrenheit and Celsius.

Replaces 8155C and 7217 Deluxe Thermometer 2-in-one shows both degrees C and degrees F.