Easy to read large display provides at a glance temperature readings for your aquarium. With a touch of a button you can view the current temperature day or night. To switch the temperature units between Celsius and Fahrenheit, press and hold the button for 3 seconds. Battery powered and energy efficient The thermometer runs on a built in LR44 button battery, delivering low power consumption for long term use. After the battery is spent, simply replace it to maintain consistent and accurate temperature monitoring. Easy installation options Choose the installation that fits your setup: - Wired model with two suction cups to attach to the outside of your aquarium wall - Wireless option with adhesive design for a hassle free, cable free installation Compact mini design The compact form factor allows you to monitor your aquarium temperature without obstruction. The small size ensures there are no blockages or disturbances to the activities of reptiles or aquatic creatures. Use scenarios - Freshwater or saltwater aquarium: keep a stable water temperature to protect fish and corals and maintain a healthy tank environment. - Reptile terrarium: monitor basking and ambient temperatures from outside the enclosure to support the wellbeing of reptiles without adding internal devices. - Small or crowded tanks: external mounting with suction cups or adhesive keeps the interior clear, reducing clutter and avoiding interference with tank inhabitants.