Aquarium Glass Thermometer:

Glass Tube: Durable glass construction for reliable temperature measurement.

Liquid Indicator: Contains liquid (mercury or alcohol) that moves with temperature changes.

Temperature Scale: Clear markings in Celsius and Fahrenheit for easy reading.

Attachment: Often comes with a suction cup or clip to secure it inside the aquarium.

Compact Size: Fits neatly in the aquarium without interfering with the tank's aesthetics.

Accuracy: Provides precise and reliable temperature readings.

Low Maintenance: Requires minimal upkeep and no batteries.