Live NH3 In-Tank Ammonia Meter

The LiveNH3 meter helps you maintain healthy water by constantly monitoring ammonia and providing immediate response to harmful ammonia levels. It is simple to use: Glance at the active membrane on your LiveNH3 meter to determine the ammonia values. Patent pending technology ensures accurate ammonia detection.
To use, simply attach it to the inside of your aquarium using the suction cup. LiveNH3 will begin monitoring ammonia immediately. Change the refill in your LiveNH3 meter every 4 to 6 weeks. For freshwater use only.