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GP-PH-1 can be used in water, brine, ethylene etc.
Geopal GP-PH-1 probe offers superior performance under conditions that often forces conventional pH probes to fail.
GP-PH-1 can be connected directly to a PLC (2 wire 4-20 mA). The PLC must provide 24 VDC supply and be able to perform a calibration function (zero and span). Alternatively, the probe can be connected directly to Geopal alarm monitor GJD-L3C.