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Check the listing for details. pH ORP replacement probe with BNC connector 300cm cable0-14 Q9 probe controller. Condition: New. Listed at 48.92 USD. 2 pH ORP buffers. Alkalinity error: 0.2 PH. Suitable for a wide range of applications: aquariums, hydroponics, laboratories, etc. Connector: BNC. pH probe with 300 cm cable. for Zero point: 7 ± 0.5 PH.