AC Infinity Replacement Probe for pH Meter PRO Kit grow-light-bulbs This particular one measures 4"

This particular one measures 4" long by 2" in diameter

it operates silently thanks to the absence of a fan

Flash Point ASTM D92 63°C

the screen needs to be replaced

This exclusive formulation prevents salt build-up and can be used in all growing media and irrigation systems

AC Infinity Replacement Probe for pH Meter PRO Kit grow-light-bulbs This particular one measures 4"Description Sensor Probe Design: This sensor probe's core purpose is to replace older probes in the pH Meter PRO and accurately read pH levels in water solutions. It reliably measures acidity, alkalinity, and the temperature of the water in a variety of environments such as gardens, aquariums, pools, and more. Advanced Membrane Sensor: Featuring a sensitive lithium glass membrane sensor, this device delivers instant pH readings with pinpoint accuracy