Update temperature within 1 second: Aquarium thermometer with precise sensor and wire helps you to monitor aquarium temperature. The measurement temperature range is -122°F to 156°F with a temperature accuracy of ±1°F. 3-in-1 Easy Installation: Strong suction cups/clamps/magnets ensure easy and convenient installation on fish or reptile tanks. Put the digital thermometer wherever you want. Size:70.0mm diameter x 27.5mm thick