The Therma-Temp Stainless Steel Thermometer is a small stainless steel thermometer that hangs on the rim of most aquariums. The Therma-Temp Stainless Steel Thermometer effectively measures tank water temperature between 0 and 40 degrees Celsius.
The Penn Plax Therma-Temp Standing Thermometer is an all glass thermometer with weighted end, bounces around your aquarium. The Penn Plax Therma-Temp Standing Thermometer reads in both Fahrenheit and Celsius.
The Penn Plax Therma-Temp Floating Thermometer with Suction Cup is an all glass thermometer with a suction cup mount. The Penn Plax Therma-Temp Floating Thermometer with Suction Cup reads in both Fahrenheit and Celsius. Temperature range from 20 to 110 F degrees and 10-40 C degrees.
The Penn Plax Therma-Temp Full-Range Digital Thermometer accurately measures aquarium temperature. The Penn Plax Therma-Temp Full-Range Digital Thermometer contains clear and easy to read numbers, fahrenheit /centigrade scale, and mounts conveniently outside aquarium.