As an Amazon Associate, we earn from qualifying purchases. Lab Grade Conductivity/Salinity Probe - Bulk Reef Supply Neptune Systems . 207521 Gallery Attributes Brand name, Manufacturer name, ManufacturerNeptune Systems Extra Product NameLab Grade Conductivity/Salinity Probe - Bulk Reef Supply keywordssaltwater aquarium supplies, reef aquarium supplies, marine fish tank, live rock, GFO, protein skimmers, two part dosing, aquarium carbon, fish food, RO/DI Systems, ecotech marine, aquaillumination, neptune systems, kessil, innovative marine moq, multiple, tierMinQty11 MPN, SKU207521 qtyInStock0 snippetSalinity / Conductivity Probe – Lab Grade Start measuring salinity in your tank and get alerts when it is out of range. Replace an old probe Add salinity monitoring to your system via the Salinity Module: PM2 Start measuring salinity in your tank and get alerts when it is out of range. Replace an old probe Add salinity monitoring to your system via the Salinity Module: PM2 *Calibration solutions sold separately Use 53.0mS calibration fluid for monitoring salinity of saltwater Use 447mS calibration fluid for monitoring TDS of freshwater tierPrice1209.99 Distributor offers SellerSKUMOQIn stockMultiplePrices bulkreefsupply.com207521111 @ $209.99