Wireless touch screen design Eliminates messy cables with a wireless design User friendly touch button to illuminate the display Shows the current water temperature on the screen Automatic off after 5 seconds to save energy HD LED display for clear readings HD LED display with blue digits for easy readability day or night Compact size that can be securely attached to the aquarium wall Does not obstruct the view of the underwater world Longlasting battery life Powered by a low power manganese lithium battery Up to 24 months of operation before replacement is needed Auto sleep mode after use enhances energy efficiency and durability Practical use scenarios Regularly monitor tank water temperature to maintain a stable environment Use during water changes or tank transfers to ensure temperature remains within safe levels Install in low light or dark rooms to easily check temperature without turning on lights