{"product_id":"rain-bird-mj100b-rain-bird-1-in-brass-flow-sensor-for-use-with-esp-me3","title":"Rain Bird MJ100B 1 in Brass Flow Sensor for ESP-ME3","description":"\u003cp\u003eThe Rain Bird MJ100B is a 1 in brass multi-jet flow sensor engineered for reliable residential and light-commercial irrigation monitoring. Designed specifically for use with ESP‑ME3 controllers, the MJ100B delivers precise flow measurement to help detect leaks, reduce water waste, and enable active flow management when paired with compatible Rain Bird controllers and the LNK WiFi module.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccurate flow range:\u003c\/strong\u003e Measures 1.2 to 50 gpm (4.5–189.3 L\/min) for consistent station-level monitoring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable construction:\u003c\/strong\u003e Brass body with glass-filled nylon components resists pressure surges, physical damage, and corrosion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eESP-ME3 integration:\u003c\/strong\u003e Wired connection and Flo-Watch™ compatibility allow automatic leak detection and selective zone shutdowns.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLearned Flow support:\u003c\/strong\u003e Works with controllers that learn station flow rates for improved accuracy without manual entry.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnalog register:\u003c\/strong\u003e Easy-to-read totalizing dial provides a local mechanical readout for flow verification.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation-friendly:\u003c\/strong\u003e Designed for straightforward plumbing connections; many retailers note included brass NPT unions for faster service and removal.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eImportant notes: do not use the MJ100B with unfiltered water sources that may contain debris (wells, ponds, or other unfiltered supplies). If the meter is full of water, protect it from freezing—drain through a downstream valve to winterize. Dimensions: 10.75\" x 4.38\" x 5.13\" (273 x 111 x 130 mm). The MJ100B is ideal for contractors and homeowners seeking reliable, low-maintenance flow sensing that unlocks advanced controller features for smarter irrigation.\u003c\/p\u003e","brand":"Rain Bird","offers":[{"title":"Default Title","offer_id":39265814118460,"sku":"MJ100B","price":154.39,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1987\/5531\/products\/UntitledDesign_79.png?v=1617649327","url":"https:\/\/www.sprinklersupplystore.com\/products\/rain-bird-mj100b-rain-bird-1-in-brass-flow-sensor-for-use-with-esp-me3","provider":"Sprinkler Supply Store","version":"1.0","type":"link"}