{"product_id":"rain-bird-fs150b-15-brass-tee-flow-sensor","title":"Rain Bird FS150B 1.5 in Brass Tee Flow Sensor - FS150B","description":"\u003ch2\u003eRain Bird FS150B 1.5 in Brass Tee Flow Sensor - FS150B\u003c\/h2\u003e\n\u003cp\u003eRain Bird FS150B is a 1.5 in brass tee flow sensor designed for commercial irrigation systems. It sends pulse flow data to controllers and transmitters for precise monitoring, leak detection, and system diagnostics.\u003c\/p\u003e\n\u003cp\u003eIncludes comprehensive technical documentation and installation guides. Ideal for commercial and institutional landscapes where reliable flow monitoring and rapid leak detection are critical.\u003c\/p\u003e\n\u003ch5\u003eFeatures\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable brass tee:\u003c\/strong\u003e robust metal construction for high-pressure irrigation applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePulse output:\u003c\/strong\u003e provides pulse output compatible with PT3002, PT322 transmitters and Rain Bird central controllers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuggested flow range:\u003c\/strong\u003e 4–80 gallons per minute (approx. 15–300 L\/min) for best accuracy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh tolerance:\u003c\/strong\u003e metal models rated for high pressure (up to 400 psi) and elevated temperatures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy integration:\u003c\/strong\u003e available with NPT or BSP ends and installs in-line in a tee fitting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e approximately 6.5 x 5.19 x 2.5 inches.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eWhat our Experts Think\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli data-section-id=\"11qil8k\" data-start=\"27\" data-end=\"244\"\u003e\n\u003cstrong data-start=\"29\" data-end=\"66\"\u003eCommercial-grade flow monitoring:\u003c\/strong\u003e The Rain Bird FS150B 1.5\" Brass Tee Flow Sensor is designed for accurate flow measurement in medium-capacity irrigation systems where reliability and system protection matter.\u003c\/li\u003e\n\u003cli data-section-id=\"1g9egc1\" data-start=\"245\" data-end=\"427\"\u003e\n\u003cstrong data-start=\"247\" data-end=\"280\"\u003ePrecise pulse output sensing:\u003c\/strong\u003e Uses a six-bladed impeller to generate pulse signals for irrigation controllers, enabling flow tracking, leak detection, and system diagnostics.\u003c\/li\u003e\n\u003cli data-section-id=\"fs0bkj\" data-start=\"428\" data-end=\"638\"\u003e\n\u003cstrong data-start=\"430\" data-end=\"462\"\u003eStrong measurement accuracy:\u003c\/strong\u003e Typically delivers around ±1% full-scale accuracy when installed within the recommended flow range, ensuring dependable hydraulic data. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"p3l3y\" data-start=\"639\" data-end=\"881\"\u003e\n\u003cstrong data-start=\"641\" data-end=\"676\"\u003eDurable brass tee construction:\u003c\/strong\u003e Heavy-duty brass body supports underground installation and high-pressure operation (up to ~400 psi in metal models), making it suitable for demanding environments. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"nc1myx\" data-start=\"882\" data-end=\"1104\"\u003e\n\u003cstrong data-start=\"884\" data-end=\"914\"\u003eOptimized operating range:\u003c\/strong\u003e Best performance typically in the mid-flow range (commonly ~4–80 GPM depending on system design), ensuring stable readings for multi-zone irrigation. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"au6izy\" data-start=\"1105\" data-end=\"1304\"\u003e\n\u003cstrong data-start=\"1107\" data-end=\"1140\"\u003eSmart irrigation integration:\u003c\/strong\u003e Works with Rain Bird central control and ESP-LX series controllers for advanced features like FloWatch leak detection, Learned Flow, and FloManager optimization.\u003c\/li\u003e\n\u003cli data-section-id=\"802qga\" data-start=\"1305\" data-end=\"1491\"\u003e\n\u003cstrong data-start=\"1307\" data-end=\"1339\"\u003eSystem protection advantage:\u003c\/strong\u003e Helps automatically detect abnormal flow conditions (broken lines, stuck valves) and can trigger shutdown to prevent water loss and landscape damage.\u003c\/li\u003e\n\u003cli data-section-id=\"1ce9y9o\" data-start=\"1492\" data-end=\"1671\"\u003e\n\u003cstrong data-start=\"1494\" data-end=\"1536\"\u003eProfessional installation requirement:\u003c\/strong\u003e Requires correct pipe sizing, straight-run installation, and compatible pulse transmitter\/controller setup for accurate performance.\u003c\/li\u003e\n\u003cli data-section-id=\"nhgg4i\" data-start=\"1672\" data-end=\"1829\" data-is-last-node=\"\"\u003e\n\u003cstrong data-start=\"1674\" data-end=\"1696\"\u003eTrade-off reality:\u003c\/strong\u003e Overkill for small residential systems—best suited for commercial landscapes, estates, and multi-zone automated irrigation networks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\n\u003cbr\u003eQ\u0026amp;A\u003c\/h5\u003e\n\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot\"\u003e\n\u003cdiv class=\"\" data-turn-id-container=\"request-WEB:493af699-8c07-4d6d-a27f-80ee8cbfacc8-33\" data-is-intersecting=\"true\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-WEB:493af699-8c07-4d6d-a27f-80ee8cbfacc8-33\" data-turn-id-container=\"request-WEB:493af699-8c07-4d6d-a27f-80ee8cbfacc8-33\" data-testid=\"conversation-turn-68\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv data-conversation-screenshot-content=\"\" class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"a7b00e96-adeb-4c0e-b69c-f309386b7e56\" data-turn-start-message=\"true\" dir=\"auto\" data-message-model-slug=\"gpt-5-3-mini\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cp data-start=\"0\" data-end=\"270\"\u003e\u003cstrong data-start=\"0\" data-end=\"72\"\u003eQ: What is the Rain Bird FS150B 1.5\" Brass Tee Flow Sensor (FS150B)?\u003c\/strong\u003e\u003cbr data-start=\"72\" data-end=\"75\"\u003e\u003cstrong data-start=\"75\" data-end=\"81\"\u003eA:\u003c\/strong\u003e A 1.5-inch in-line brass tee flow sensor used in commercial irrigation systems to measure water flow and send pulse signals to a compatible irrigation controller or central control system.\u003c\/p\u003e\n\u003cp data-start=\"272\" data-end=\"447\"\u003e\u003cstrong data-start=\"272\" data-end=\"295\"\u003eQ: What does it do?\u003c\/strong\u003e\u003cbr data-start=\"295\" data-end=\"298\"\u003e\u003cstrong data-start=\"298\" data-end=\"304\"\u003eA:\u003c\/strong\u003e It detects water flow through a 1.5\" irrigation mainline and converts it into electrical pulse signals for flow monitoring and system control.\u003c\/p\u003e\n\u003cp data-start=\"449\" data-end=\"608\"\u003e\u003cstrong data-start=\"449\" data-end=\"473\"\u003eQ: Where is it used?\u003c\/strong\u003e\u003cbr data-start=\"473\" data-end=\"476\"\u003e\u003cstrong data-start=\"476\" data-end=\"482\"\u003eA:\u003c\/strong\u003e Common in commercial irrigation setups such as parks, sports fields, golf courses, campuses, and large landscaped properties.\u003c\/p\u003e\n\u003cp data-start=\"610\" data-end=\"784\"\u003e\u003cstrong data-start=\"610\" data-end=\"647\"\u003eQ: What type of system is it for?\u003c\/strong\u003e\u003cbr data-start=\"647\" data-end=\"650\"\u003e\u003cstrong data-start=\"650\" data-end=\"656\"\u003eA:\u003c\/strong\u003e Designed for 1.5-inch mainline irrigation systems that require flow measurement for monitoring, leak detection, and automation.\u003c\/p\u003e\n\u003cp data-start=\"786\" data-end=\"932\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"786\" data-end=\"819\"\u003eQ: Is it a standalone device?\u003c\/strong\u003e\u003cbr data-start=\"819\" data-end=\"822\"\u003e\u003cstrong data-start=\"822\" data-end=\"828\"\u003eA:\u003c\/strong\u003e No. It must be connected to a compatible irrigation controller or pulse transmitter system to function.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch5\u003eMaintenance Tips\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli data-section-id=\"58zhx6\" data-start=\"58\" data-end=\"140\"\u003e1.5-inch \u003cstrong data-start=\"69\" data-end=\"101\"\u003ebrass tee inline flow sensor\u003c\/strong\u003e for commercial irrigation monitoring\u003c\/li\u003e\n\u003cli data-section-id=\"ogdq6w\" data-start=\"141\" data-end=\"219\"\u003eUses a \u003cstrong data-start=\"150\" data-end=\"179\"\u003esix-blade impeller design\u003c\/strong\u003e for stable, accurate flow measurement\u003c\/li\u003e\n\u003cli data-section-id=\"1ewwrih\" data-start=\"220\" data-end=\"341\"\u003eProvides approximately \u003cstrong data-start=\"245\" data-end=\"272\"\u003e±1% full-scale accuracy\u003c\/strong\u003e for reliable system readings \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"bvlihu\" data-start=\"342\" data-end=\"460\"\u003eDesigned for \u003cstrong data-start=\"357\" data-end=\"396\"\u003eoutdoor or underground installation\u003c\/strong\u003e in irrigation mainlines \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"epem2h\" data-start=\"461\" data-end=\"585\"\u003eHeavy-duty \u003cstrong data-start=\"474\" data-end=\"545\"\u003ebrass construction rated for high-pressure systems (up to ~400 psi)\u003c\/strong\u003e \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"19m5cuf\" data-start=\"586\" data-end=\"722\"\u003e\n\u003cstrong data-start=\"588\" data-end=\"611\"\u003ePulse output signal\u003c\/strong\u003e compatible with Rain Bird controllers and transmitters (PT322, PT3002) \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1sqzddy\" data-start=\"723\" data-end=\"830\"\u003eSupports advanced irrigation functions like \u003cstrong data-start=\"769\" data-end=\"828\"\u003eleak detection, flow monitoring, and automatic shutdown\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"67juzu\" data-start=\"831\" data-end=\"958\"\u003eTypical operating range around \u003cstrong data-start=\"864\" data-end=\"918\"\u003e4–80 GPM (application-dependent for best accuracy)\u003c\/strong\u003e \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"ldwo75\" data-start=\"959\" data-end=\"1041\"\u003eCompatible with \u003cstrong data-start=\"977\" data-end=\"1039\"\u003ecentral control systems (ESP-LXD, ESP-LXMEF, IQ platforms)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"le5b2l\" data-start=\"1042\" data-end=\"1125\"\u003eUsed in \u003cstrong data-start=\"1052\" data-end=\"1123\"\u003ecommercial landscapes, sports fields, and large irrigation networks\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Rain Bird","offers":[{"title":"Default Title","offer_id":45805107806399,"sku":"FS150B","price":845.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/5703\/0079\/files\/FS150B-2_95061695-b7b5-4581-9586-468df9af3aa0.jpg?v=1782943375","url":"https:\/\/www.mybackyardzone.com\/products\/rain-bird-fs150b-15-brass-tee-flow-sensor","provider":"Your Outdoor Setup Starts Here","version":"1.0","type":"link"}