Keep tank conditions steady with an external aquarium thermometer that is accurate, easy to install, and unobtrusive. - Accurate temperature at a glance: precision thermal technology delivers fast, reliable readings of the water temperature, helping you prevent shocks from sudden warming or cooling. - Easy installation: peel-and-stick backing attaches securely to the outside of glass, acrylic tanks, or other containers; no tools required and no water contact with electronics. - Compact, stylish design: a round thermometer patch that complements any setup while remaining unobtrusive. - Clear, color-coded display: color-coded markings show the current temperature at a glance; multiple colors aid quick detection and averaging. - Durable and versatile: designed for humid aquarium environments; suitable for freshwater, saltwater, and quarantine/breeding tanks. - Practical use scenarios: daily checks for planted tanks; maintaining stable temps in reef or marine tanks; monitoring quarantine or incubator setups where precise temperature matters.