biOrb Digital Thermometer
The biOrb submersible Digital Thermometer is suitable for any aquarium, any size. It has a simple sucker which makes it easy to fit to the inside of the aquarium. A clear digital display shows the temperature of the water in oC and is powered by a battery (supplied) so it can be fitted anywhere inside the aquarium. Suitable for freshwater (goldfish & most tropical fish) and saltwater (Marine) aquariums.