Directions For Use:Attach LiveMeter Master Test monitor to the inside of your aquarium using the suction cups. The NH3 sensor will begin monitoring ammonia levels immediately. Once fully wet (1 - 2 hours), the pH sensor responds to pH changes in minutes. Compare the active membrane to the color reference blocks to determine if action is needed to maintain healthy water. The thermometer will help you monitor safe water temperatures. Adjust Month/date slide indicators to indicate when it is time to replace the monitor - approximately every six weeks. For use in freshwater aquariums only.
Mardel Freshwater LiveMeter Master Test Kit
Dimensions: 6"W X 2.5"H