Lifegard Aquatics LED Digital Thermometer ProLine 5" high although the tube

5" high although the tube also comes out the top

A whopping 7 functions

Mix 2 ounces of Treatment Booster PLUS for every gallon of chemical/water solution

Durable and reliable

Lifegard Aquatics LED Digital Thermometer ProLine 5" high although the tubeShips from manufacturer, typically in 5 7 business days The Lifegard Aquatics LED Digital Thermometer is the first submersible LED digital thermometer. The highly visible, ultra bright LED display can be seen from across the room. It can be submerged to display the water temperature or secured outside to display the air temperature. The adjustable suction cup allows for versatility Can be used in terrariums, freshwater aquariums or saltwater aquariums