Displays degree Centigrade and Fahrenheit: the stick-on digital temperature strip measures both Fahrenheit and Celsius. The thermometer strip has a range of 64°F to 93°F and 18°C to 34°C. The large numbers indicate Fahrenheit and the small numbers indicate Celsius. Easy to install: simply peel off the backing to reveal the adhesive and apply to the front of your fish tank, aquarium, jar, or fermentation bucket. Remove the transparent protective film before use. For one-time use only. Ideal for quickly monitoring the temperature of fish tanks, wine jars, and similar containers. Regular size: the adhesive crystal strip thermometer is designed to fit most surfaces. Suitable for fermenting, brewing, wine, beer, and aquarium applications. Wide temperature range: the fish tank thermometer measures from 64°F to 93°F with a measurement accuracy of 1°F. After approximately 2 to 5 minutes, the color change will indicate the exact temperature. Keep away from direct heat sources. You will receive: 36 digital temperature stickers. This quantity is sufficient for long-term use in various applications. These stickers are suitable for monitoring the temperature of fish tanks, aquariums, DIY beverages, wine barrels, and other pet tanks. Color: Black Material: PET Size: 13 x 1.8 cm Package Contents: 36 x Digital Temperature Sticker Note: Light and display settings may cause slight color variations between the image and the actual item. Measurement error allowance is +/- 1-3 cm.