Water temperature is an important factor that affects the health of fish. The MARINA Digital Liquid Crystal Aquarium thermometer is accurate and easy to read. The thermometers come in slightly varying ranges from 18 to 31 degrees Celsius (64 to 88 degrees Fahrenheit). It comes with an adhesive backing which makes it easy to mount to the outside glass. Ideal for all fresh and saltwater aquarium setups. 3 different styles available:

• 11221 - horizontally mounted, 68-86 degrees Fahrenheit temperature range, 7.75 cm length
• 11222 - vertically mounted, 64-86 degrees Fahrenheit temperature range, 4.5 cm length
• 11223 - vertically mounted, 66-86 degrees Fahrenheit temperature range, 7.5 cm length
• 11226 - vertically mounted, 66-86 degrees Fahrenheit temperature range, 13 cm length