Displays both Fahrenheit and Celsius: This stick-on digital temperature strip measures temperatures in both Fahrenheit and Celsius. The thermometer has a range of 64°F to 93°F (18°C to 34°C). Large numbers indicate Fahrenheit, while smaller 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 more. Standard size: The adhesive crystal strip thermometer is designed to fit most surfaces. Suitable for fermenting, brewing, wine, beer, and aquariums. Wide temperature range: Measures from 64°F to 93°F with 1°F accuracy. Temperature readings stabilize within 2 to 5 minutes as the color changes to indicate the exact temperature. Keep away from direct heat sources. Package includes: 36 digital temperature stickers. Sufficient quantity for long-term use in various applications. Suitable for monitoring temperature in 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 screen display settings may cause slight color variations between the image and the actual item. Measurement error allowance is +/- 1-3 cm.