The Seachem Alerts Combo Pack offers a simple, continuous visual monitoring solution for two of the most critical water parameters in your aquarium: ammonia and pH. This package bundles the Ammonia Alert and pH Alert sensors, which utilize Seachem's innovative sensor technology to change color in response to shifts in water chemistry. This eliminates the need for test strips, chemical reagents, and complex procedures, providing at-a-glance readings directly inside your tank.

The Ammonia Alert is an invaluable tool for both saltwater and freshwater aquariums, detecting toxic free ammonia levels as low as 0.05 ppm and lasting for over a year. Its sensor reversibly changes from yellow to green to blue, indicating the concentration of ammonia and alerting you to the number one killer of aquarium inhabitants. The pH Alert, designed for freshwater use only, provides a constant reading of your tank's pH levels and has a lifespan of three to six months.

This combo pack is perfect for aquarists who value convenience and constant monitoring over periodic testing. The long-lasting Ammonia Alert is especially beneficial for new marine or freshwater tanks during the cycling process, providing an early warning system against dangerous ammonia spikes. It offers peace of mind by providing a continuous check on water safety, allowing you to react to problems before fish show any signs of stress.