{"product_id":"red-sea-reefsense-ph-temperature","title":"Red Sea ReefSense pH \u0026 Temperature — Digital Reef Probe with Bluetooth Calibration","description":"\u003cp\u003eThe \u003cstrong\u003eRed Sea ReefSense pH \u0026 Temperature probe\u003c\/strong\u003e continuously tracks the fastest-moving parameter in a reef tank, plugged into a ReefControl controller. It is the same probe included with the Lite and Pro controllers — this page is for adding a second one, or replacing yours at end of life. Because it must be said plainly: per Red Sea's manuals, a pH probe is a wear item — about 12 months of continuous use, with a 6-month warranty.\u003c\/p\u003e\n\n\u003cdiv style=\"margin:20px 0;\"\u003e\u003cvideo controls preload=\"metadata\" playsinline poster=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0513\/7108\/1899\/files\/preview_images\/1338385c9a05467fba4fb82e4d8d2725.thumbnail.0000000000.jpg?v=1786662047\" data-vs=\"rc-family-en\" style=\"width:100%;border-radius:8px;\"\u003e\u003csource src=\"https:\/\/cdn.shopify.com\/videos\/c\/vp\/1338385c9a05467fba4fb82e4d8d2725\/1338385c9a05467fba4fb82e4d8d2725.HD-1080p-2.5Mbps-91555257.mp4\" type=\"video\/mp4\"\u003e\u003c\/video\u003e\u003c\/div\u003e\n\n\u003ch2\u003eWhat makes ReefSense probes different\u003c\/h2\u003e\n\u003cp\u003ePer Red Sea's official manuals, every ReefSense probe is digital and stores its calibration in onboard memory: it plugs into any port of a \u003ca href=\"\/en\/products\/red-sea-reefcontrol-lite\"\u003eReefControl Lite\u003c\/a\u003e or \u003ca href=\"\/en\/products\/red-sea-reefcontrol-pro\"\u003ePro\u003c\/a\u003e, moves between controllers without recalibrating, and calibrates over Bluetooth at the sink — with the pH 7 and pH 10 solutions. Recalibration is monthly: ten minutes that keep the readings trustworthy.\u003c\/p\u003e\n\n\u003ch2\u003eLifespan — know this before you buy\u003c\/h2\u003e\n\u003cp\u003eA pH probe wears out by measuring: that is true of every brand, and Red Sea puts it in writing — about 12 months of continuous use, 6-month warranty. It is not a defect; it is electrode chemistry. Plan its annual replacement the way you plan your water tests: it is the price of readings you can trust. Red Sea also notes that a daily swing of 0.1 to 0.3 pH is normal in a healthy tank — before blaming the probe, look at alkalinity, aeration and room CO₂.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eDoes the pH probe work on its own?\u003c\/h3\u003e\n\u003cp\u003eNo — it is a sensor for the ReefControl Lite and Pro controllers. It takes one ReefSense port and its readings display in ReefBeat.\u003c\/p\u003e\n\u003ch3\u003eHow often do I calibrate it?\u003c\/h3\u003e\n\u003cp\u003eMonthly, per Red Sea, with the pH 7 and pH 10 solutions. Calibration happens over Bluetooth with the probe at the sink — no need to touch the controller.\u003c\/p\u003e\n\u003ch3\u003eWhy does my pH probe only last a year?\u003c\/h3\u003e\n\u003cp\u003eBecause every pH electrode depletes — that is its chemistry, whatever the brand. Red Sea is upfront: about 12 months of continuous use, 6-month warranty. A reading that drifts despite a fresh calibration is the classic end-of-life sign.\u003c\/p\u003e\n\u003ch3\u003eIs it normal for pH to swing during the day?\u003c\/h3\u003e\n\u003cp\u003eYes — 0.1 to 0.3 pH of daily swing is normal per Red Sea. Light, aeration and room CO₂ make a reef's pH breathe.\u003c\/p\u003e\n\n\u003ch2\u003eWhy buy from ReefSolution\u003c\/h2\u003e\n\u003cp\u003eReefSolution is an authorized Red Sea dealer in Canada — no customs or exchange surprises. The probe plugs into the \u003ca href=\"\/en\/products\/red-sea-reefcontrol-lite\"\u003eReefControl Lite\u003c\/a\u003e or \u003ca href=\"\/en\/products\/red-sea-reefcontrol-pro\"\u003ePro\u003c\/a\u003e, and the \u003ca href=\"\/en\/products\/red-sea-reefsense-salinite-temperature\"\u003esalinity probe\u003c\/a\u003e is its natural companion on the second port. Shipping across Canada and expert advice in-store in Laval.\u003c\/p\u003e","brand":"Red Sea","offers":[{"title":"Default Title","offer_id":47620840423595,"sku":"RSR35821","price":199.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0513\/7108\/1899\/files\/pH-Temp-Probe.jpg?v=1786666955","url":"https:\/\/reefsolution.com\/en\/products\/red-sea-reefsense-ph-temperature","provider":"Reef Solution","version":"1.0","type":"link"}