Displays degree Centigrade and Fahrenheit: the stick-on digital temperature strip measures both Fahrenheit and Celsius. The thermometer strip has a range of 64F to 93F and 18C to 34C. The large numbers are Fahrenheit and the small numbers are Centigrade. Easy to install: simply pull the backing off to reveal the adhesive and apply to the front of your fish tank, aquarium, jar, or fermentation bucket. Please remove the transparent protective film on the surface layer. One-time use. Great for quickly monitoring the temperature of your fish tank or wine container. Regular size: the adhesive crystal strip thermometer is sized to fit most surfaces, suitable for fermenting, brewing, wine, beer, and aquariums. Wide temperature range: the fish tank thermometer measures from 64F to 93F with 1F accuracy. After about 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. Sufficient quantity for long-term use in various applications. Suitable for monitoring the temperature of fish tanks, aquariums, DIY drinks, wine barrels, and pet tanks. Color: Black Material: PET Size: 13 x 1.8 cm Package Contents: 36 x Digital Temperature Sticker Note: Light and different displays may cause slight color variations between the image and the actual item. Measurement error allowance is +/- 1-3 cm.