Seachem Ammonia Alert

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.
Avoid touching the sensor with fingers, since skin oils can damage it.

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