{"product_id":"jandy-7790-temperature-sensor-kit-air-water-solar-15-ft","title":"Jandy 7790 Temperature Sensor Kit — Air, Water or Solar, 15 ft Cord, Gray — AquaLink RS, PDA \u0026 Z4 — Genuine OEM","description":"\u003cp\u003eThe \u003cstrong\u003eJandy 7790 Temperature Sensor Kit\u003c\/strong\u003e is the genuine OEM temperature probe used across Jandy, Zodiac and Polaris pool automation. It is a sealed 10K ohm thermistor on a 15 ft two-conductor cord, supplied with its sealing O-ring.\u003c\/p\u003e\n\u003ch2\u003eOne Part, Three Jobs\u003c\/h2\u003e\n\u003cp\u003eThis is the same sensor whether your system needs an \u003cstrong\u003eair\u003c\/strong\u003e, \u003cstrong\u003ewater\u003c\/strong\u003e or \u003cstrong\u003esolar\u003c\/strong\u003e reading — the role is decided by where you mount it, not by a different part number. If you are replacing two sensors on the same system, you are ordering this SKU twice.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater:\u003c\/strong\u003e drill a 3\/8 in hole in the pipe between the pump and the filter, seat the O-ring and secure with a stainless pipe clamp.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAir:\u003c\/strong\u003e mount outside the power center in shade, away from heat sources and power wiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolar:\u003c\/strong\u003e mount adjacent to the solar collectors.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAll three land on the green 10-pin terminal bar on the power center board.\u003c\/p\u003e\n\u003ch2\u003eCompatible Systems\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eJandy AquaLink RS — RS4, RS6, RS8 and variants\u003c\/li\u003e\n\u003cli\u003eJandy PDA\u003c\/li\u003e\n\u003cli\u003eAquaLink Z4\u003c\/li\u003e\n\u003cli\u003eJandy Solar Control System\u003c\/li\u003e\n\u003cli\u003eJandy power center PCB\u003c\/li\u003e\n\u003cli\u003ePolaris EOS controller and Sol 1000\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePolaris S20\u003c\/strong\u003e — this is the direct replacement\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Jandy OEM:\u003c\/strong\u003e factory-calibrated 10K ohm thermistor, not a generic substitute.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eServes air, water or solar:\u003c\/strong\u003e one part number covers all three sensor positions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e15 ft cord:\u003c\/strong\u003e reaches from the power center to pad plumbing or an outdoor air position.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eO-ring included:\u003c\/strong\u003e seals into a 3\/8 in hole without additional parts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect Polaris S20 replacement:\u003c\/strong\u003e a useful route when the S20 is unavailable.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 7790\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Temperature sensor kit — air, water or solar\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermistor:\u003c\/strong\u003e 10K ohm NTC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCord Length:\u003c\/strong\u003e 15 ft, two conductor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour:\u003c\/strong\u003e Gray\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProbe Dimensions:\u003c\/strong\u003e 15 in L x 0.2 in W x 0.2 in D\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Hole:\u003c\/strong\u003e 3\/8 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Sensor and O-ring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlternate Part Numbers:\u003c\/strong\u003e 6848, JDY3015097, 59-295-1102, JDY-301-2839\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Jandy \/ Zodiac (Genuine OEM)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eIs this the air sensor or the water sensor?\u003c\/h3\u003e\n\u003cp\u003eBoth. It is the same part in either position — what makes it an air, water or solar sensor is where you mount it. If you are replacing more than one on the same system, order this part more than once.\u003c\/p\u003e\n\u003ch3\u003eCan I extend the cord if 15 ft will not reach?\u003c\/h3\u003e\n\u003cp\u003eNo. Jandy's instructions say to cut and discard any excess rather than splice or extend. Splicing changes the resistance the controller measures and will skew your temperature readings. There is no OEM extension for this sensor.\u003c\/p\u003e\n\u003ch3\u003eHow do I know the sensor has failed?\u003c\/h3\u003e\n\u003cp\u003eCommon signs are a temperature reading stuck at one value, a wildly implausible reading, a display showing dashes in place of a temperature, or a heater or solar valve that will not call because the controller thinks the target is already met.\u003c\/p\u003e\n\u003ch3\u003eWill it work with my Polaris S20?\u003c\/h3\u003e\n\u003cp\u003eYes. The 7790 is the published direct replacement for the Polaris S20 sensor.\u003c\/p\u003e\n\u003ch3\u003eIs this the same as the cheaper sensors sold online?\u003c\/h3\u003e\n\u003cp\u003eNo. There is a large aftermarket in generic \"replaces 7790\" probes. This listing is the genuine Jandy OEM part with the factory thermistor calibration your controller expects.\u003c\/p\u003e\n\u003ch3\u003eHow is it installed in the pipe?\u003c\/h3\u003e\n\u003cp\u003eA 3\/8 in hole is drilled in the pipe between the pump and filter, the O-ring seats against the pipe wall and a stainless clamp holds it. Do not overtighten — excessive clamp pressure cracks the probe boss.\u003c\/p\u003e\n\u003cdiv class=\"ps4u-faq\"\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is the part number for this sensor?\u003c\/h3\u003e\n\u003cp\u003eJandy lists this sensor under part number 7790. Quote 7790 when you cross-reference it against your equipment manual, an existing part, or a parts diagram, so you are comparing the same revision.\u003c\/p\u003e\n\u003ch3\u003eHow do I confirm this fits my equipment?\u003c\/h3\u003e\n\u003cp\u003eMatch the part number on the component you are replacing, or look it up in the parts list for your Jandy control system. If your model or serial number is not named on this page, send it to us before you order and we will confirm the fit.\u003c\/p\u003e\n\u003ch3\u003eDoes this need a professional to fit?\u003c\/h3\u003e\n\u003cp\u003eThe sensor itself is low voltage and within reach of a competent owner, but it lands inside a power center that also carries line voltage. Cut power at the breaker before opening the enclosure, and have a licensed professional handle anything on the supply side.\u003c\/p\u003e\n\u003ch3\u003eIs there a warranty on this part?\u003c\/h3\u003e\n\u003cp\u003eIt carries the standard Jandy manufacturer warranty. The terms are set by Jandy. Keep the receipt and packaging until you have confirmed correct operation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003csmall\u003eCalifornia Proposition 65 Warning: This product can expose you to chemicals known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov.\u003c\/small\u003e\u003c\/p\u003e","brand":"Jandy","offers":[{"title":"Default Title","offer_id":67588787405117,"sku":"7790","price":92.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0968\/6741\/8429\/files\/7790.jpg?v=1790616689","url":"https:\/\/poolsupply4u.com\/products\/jandy-7790-temperature-sensor-kit-air-water-solar-15-ft","provider":"PoolSupply 4U","version":"1.0","type":"link"}