●【NECESSARY AQUARIUM ACCESSORIES】Any aquarist will tell you that it is vital to keep a close eye on the temperature of the water in your aquarium, as even a small change in temperature can spell disaster. An accurate, easy to use and long life aquarium thermometer is essential and Im sure PAIZOO is your number one choice. ●【LED HIGH DEFINITION DISPLAY】As a rule, digital thermometers with an LED display tend to be the most accurate. PAIZOO fish tank thermometer reads accurately to ±0.1 degrees Fahrenheit, thanks to the LEDs light-emitting properties, you can take clear readings even in dark environments, making it easier to read accurately and quickly than traditional mercury and patch thermometers. ●【ACCURACY MEASUREMENT】The digital thermometer built-in high-precision temperature measurement chip, some subtle temperature changes can be clearly sensed. and it has a range between 0°F to 140.0°F. and a sampling interval of five seconds, which is ideal for your aquarium. ●【EASY TO OPERATE】If you want a simple thermometer thats easy to use and stays accurate, this offering from PAIZOO could be what you need. The fish tank thermometer is attached to the outside of the aquarium glass with 3M adhesive and couldnt be easier to set up. We believe that ease of use is often one of the most important factors in choosing one thermometer over another. ●【REPLACEABLE BATTERY】The digital aquarium thermometer has a built-in 3V CR2032 button cell battery for long life and a replaceable design. If there is any problem with the product, you can contact us at the first time, we have customer service will deal with your problem within 24 hours.