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. The device detects less than 0.05 mg/L (ppm) free ammonia and alerts you to the #1 killer before any sign of stress. It lasts over a year. This product is not recommended for use at acid pH. Marine or freshwater use.

• 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

Ammonia Alertlasts over9Xas long as competing products.
Ammonia Alertis also almosthalf the sizeof competing products. It's small, clear, and unobtrusive, so it won't detract from the view of your aquarium.

Includes 1 sensor technology card (1.5" x 2.5")