Ista Mini Thermometer

This Mini Thermometer by Ista is the perfect device to use in nano or small aquariums, or to spot checking temperature when required. With the included suction cup you can easily affix it to any glass or acrylic surface, anywhere in your aquarium where it can be viewed easily for your convenience. This thermometer is a mere 3-inches in length and measures up to 50-degrees Celsius (122-degrees Fahrenheit).