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The glass bulb loses sensitivity with use and will eventually fail
Self-fusing
The pH sensing bulbs become less sensitive over time so make sure that you are calibrating regularly to keep your PRO pH meter accurate
paired with a sturdy belt clip for convenient carry and storage
EC (conductivity) and TDS with a single meter and one single probe
MA957 CO2 Flow Pressure Regulator with Solenoid Valve The glass bulb loses sensitivityThe Milwaukee MA957 CO2 Adjustable Flow Pressure Regulator is a High Quality brass fittings regulator, designed for long lasting use in your Aquarium and Hydroponics applications. Can be used with all Milwaukee controllers. Set of one (1) per package. Design features The Milwaukee MA957 High Quality CO2 Adjustable Flow Pressure Regulator has a Solenoid, a 4' cord, standard brass fittings, diaphram valves and a bubble counter. Designed to be used with