Aquarium Thermometer Glass 25cm

The traditional glass aquarium thermometer remains one of the most reliable and long-lasting temperature monitoring tools available, requiring no batteries or calibration. At 25cm in length this thermometer is visible from a comfortable distance across the aquarium and is long enough to read the water temperature at mid-depth rather than at the surface where readings can be influenced by ambient air temperature. The suction cup holder attaches securely to any clean glass or acrylic tank wall. The 0-50°C range covers all freshwater and coldwater aquarium applications. Colour-coded zone markings make it easy to confirm at a glance whether the tank is in the correct temperature range for the species being kept.