Ammonia Alert® is an innovative color device for continuously detecting and monitoring toxic free ammonia. A sensor changes reversibly from yellow to green to blue, relative to the ammonia concentration. Read more
Seachem Ammonia Alert
• Ammonia Alert® lasts over 9X as long as competing products.
• Ammonia Alert® is also almost half the size of competing products. It's small, clear, and unobtrusive, so it won't detract from the view of your aquarium.
Sizes: 13 x 25.5cm / 5" x 9.5"