🌟 Keep your aquatic world safe effortlessly! Designed for everyone, no expertise required. Perfect for both freshwater and marine environments. Sleek and unobtrusive at just 3.3 inches. Say goodbye to test kits and chemicals! Enjoy peace of mind for over a year. 1-year lifespan Freshwater & marine Continuous monitoring The Seachem Ammonia Alert 1 Year Monitor (3 Pack) is a cutting-edge sensor technology that continuously detects and monitors free ammonia levels in both marine and freshwater environments. With no need for test kits or chemicals, this user-friendly device provides constant readings and lasts over a year, ensuring your aquatic life remains healthy and thriving.