{"product_id":"pentairwaterpoolandspainc_744000260","title":"Pentair pH Sensor, BNC Blue | AK110 \/ AK600 Chemical Controllers | 744000260","description":"\u003ch3\u003eOEM pH Sensor for Pentair AK110 and AK600 Chemical Controllers\u003c\/h3\u003e\n\n\u003cp\u003eThe Pentair 744000260 is the OEM replacement pH sensor for the AK110 and AK600 Chemical Controllers. This BNC-connector sensor (blue) is the direct-fit replacement for restoring accurate pH measurement to your automated chemical dosing system.\u003c\/p\u003e\n\n\u003cp style=\"background-color: #fff3cd; border: 2px solid #FFEAA7; padding: 15px; border-radius: 5px; margin: 15px 0; color: #856404;\"\u003e\n\u003cstrong\u003e⚠️ IMPORTANT: LICENSED PROFESSIONAL INSTALLATION REQUIRED\u003c\/strong\u003e\u003cbr\u003e\nElectrical control components must be installed or replaced by a qualified electrician or certified pool technician. Do not attempt to service mains-voltage components without proper certification.\n\u003c\/p\u003e\n\n\u003cp\u003eThe pH sensor continuously monitors water chemistry and transmits readings to the AK110 or AK600 controller, which uses that data to trigger chemical dosing. A degraded or failed sensor produces inaccurate pH readings, leading to under- or over-dosing of sanitizer and pH-adjustment chemicals. Replacing the sensor restores closed-loop chemical control accuracy. The BNC connector type and blue color designation identify this as the pH sensor — confirm the connector type and color on your existing sensor before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 20px 0; border: 1px solid #ccc;\"\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003ePentair Part Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e744000260\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eConnector Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eBNC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eBlue\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eQuantity Included\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePro Tip\u003c\/h3\u003e\n\u003cp\u003epH sensors and ORP (oxidation-reduction potential) sensors are often sold as a pair for chemical controllers — confirm you are ordering the correct sensor type before purchasing. The blue BNC connector identifies this as the pH sensor. If your controller is also displaying erratic ORP readings, inspect the ORP sensor (typically yellow or black connector) at the same service interval. Match the part number on your existing sensor to 744000260 before ordering.\u003c\/p\u003e\n\n\u003c!-- wft:processed:manual:2026-04-04 --\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":53936526721299,"sku":"744000260","price":547.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0920\/0687\/5411\/files\/pentair-ph-sensor-bnc-blue-ak110-ak600-chemical-controllers-744000260-3.webp?v=1777917251","url":"https:\/\/poolaroo.com\/products\/pentairwaterpoolandspainc_744000260","provider":"Poolaroo","version":"1.0","type":"link"}