Seachem Sensor Technology

Includes Ammonia Alert and pH Alert. Continuously monitors ammonia and pH levels in freshwater. No chemicals or testing procedures are required.

The Alert Combo Pack combines Ammonia Alert (1 card) and pH Alert (1 card). Ammonia Alert and pH Alert are nearly half the size of competing products. Measuring 1.5 x 2.5 cm, they are small, clear, and unobtrusive, ensuring they do not detract from the view of your aquarium. Simply place Ammonia Alert and pH Alert in a visible location anywhere in the aquarium or filter. It's that easy. No chemicals or testing procedures are required.