As an Amazon Associate, we earn from qualifying purchases. Probe Calibration Kit - ph 7.0, ph 10.0, & Salinity 53000uS - Bulk Reef Supply Neptune Systems . 212065 Gallery Attributes Brand name, Manufacturer name, ManufacturerNeptune Systems Extra Product NameProbe Calibration Kit - ph 7.0, ph 10.0, & Salinity 53000uS - Bulk Reef Supply extendedQty, qtyInStock0 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, SKU212065 qtySourceupdateFromUrlEntry snippetOver the course of a few months, it is common for probes to drift and they should be recalibrated when that occurs. The Neptune Systems Probe Calibration Kit includes everything you need to calibrate your pH probe and salinity probe for reef tank conditions. The single-use packets make calibration procedures easy and only requires clean water to rinse the probe between calibrations. Neptune Systems uses only quality ingredients when producing their calibration solutions ensuring accuracy. pH Probe Calibration If you have a single junction or a double junction pH probe, you can use the pH 7.0 and 10.0 calibration solution packets. Most controllers will require a two-point calibration method that lets you calibrate the probe on each side of tierPrice15.99 Distributor offers SellerSKUMOQIn stockMultiplePrices bulkreefsupply.com212065111 @ $5.99