Like a nanny for your aquarium, the Marina Aqua-Minder Programmable Digital Thermometer helps you keep it all in check. Monitor and keep your maintenance schedule even when your busy schedule makes it difficult. Reminders tell you when you"re due for a water change or if the temperature has dropped. Free yourself up for other things with this helper. About Marina Dedicated to providing a wide variety of friendly and affordable aquarium products for all types of fish keeping, Marina’s extensive product line has something for every fish hobbyist. Newbies love the ease and convenience of Marina’s fish starter kits, and those with experience appreciate the reliable efficiency of their filters and heaters. A varied selection of colorful, creative decorations such as gravel, plants, and ornaments, provide a gorgeous underwater environment. A vast array of maintenance and breeding accessories are practical, reliable, and timesaving so you can spend more time enjoying your aquarium and less time cleaning it. * Provides continuous monitoring of temperature * Features 6 programmable English tasks * Ideal for reminding people with busy schedules * Measures 32 - 199 degrees Fahrenheit * Dimensions: .9L x 4.9W x 8H inches