Features: brand new and high quality Displays Degree Centigrade Fahrenheit: The thermometer strip has a range of 10 to 36 and 50 to 97. The large numbers are Centigrade and the small numbers are Fahrenheit. Easy To Stick On: Simply pulled the backing off to reveal the adhesive back and applied to the front of your fish for tank/aquarium/carboy/jar/fermentation bucket. Great way to keep a quick eye on your fish for tank/wine jar/kombucha temp. Easy to Read: The thermometer temperature sticker is a piece of temperature sensitive paper. The green colored marking shows the current temperature. Different Quantity to Choose: We provide you with 2 different quantity set to choose from, namely, 1 piece or 10 pieces of temperature strips, enough quantity to use, each thermometer sticker is approx. 5.12 x 0.79 inch. No Battery Required: Aquarium Thermometers are mechanical and has a longer life expectancy in use, you don'for t have to worry about cold weather draining the battery since the analog work well but no batteries needed. Package Includes: 1 Pc Aquarium Thermometer Sticker or 10 Pcs Aquarium Thermometer Sticker Specifications: Material: Plastic Style: 1Pc/10Pcs Size: Approx.130x20mm/5.12x0.79in Weight: 1Pc-Approx.1g 10Pcs-Approx.10g Temperature Range: 10 - 36/50 - 97 note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!