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. No test kits, chemicals, or procedures are needed.

• Seachem sensor technology
• Continuously detects and monitors free ammonia
• No test kits, chemicals, or procedures are needed; just constant readings
• Lasts over a year
• Marine and freshwater