Precise water temperature monitoring to help maintain healthy fish by keeping tank conditions within the optimal range. Durable ABS construction: made from selected ABS plastic for reliable use in freshwater, brackish, and marine environments. Secure suction cup mounting: attaches easily to glass aquariums with a strong suction cup; no tools required. Versatile for various environments: suitable for home aquariums, office tanks, and educational settings; fits discreetly into different spaces. Ideal for fish enthusiasts, pet-store staff, and aquarium curators who regularly check the temperature of their aquatic spaces. Use scenarios - Home freshwater or marine tank: monitor temperature trends and adjust heater or cooling as needed. - Office or classroom display: keep an educational tank within a safe range for students and staff. - Breeding setups and reef tanks: maintain stable temperatures crucial for health and breeding success.