{"product_id":"hobbywing-rpm-sensor","title":"Hobbywing RPM Sensor for Brushless Motor Speed Signal and V-Bar Governor Systems","description":"\u003cstyle\u003e\n  .cnhl-note-box {\n    background: #fafafa;\n    border-left: 4px solid #E60073;\n    padding: 12px 14px;\n    margin: 16px 0;\n    font-size: 14px;\n    line-height: 1.55;\n  }\n\n  .cnhl-feature-section {\n    margin: 26px 0;\n  }\n\n  .cnhl-feature-img {\n    width: 100%;\n    max-width: 100%;\n    height: auto;\n    display: block;\n    margin: 16px auto;\n    border-radius: 12px;\n  }\n\u003c\/style\u003e\n\n\u003cp\u003e\u003cstrong\u003eHobbywing RPM Sensor\u003c\/strong\u003e is a compact brushless motor speed signal sensor designed to detect voltage changes from brushless motor wires and output an RPM signal for compatible speed control, governor, and telemetry-related systems. It is commonly used in RC helicopter setups where a separate RPM signal is required for systems such as V-Bar-style governor applications.\u003c\/p\u003e\n\n\u003cp class=\"collapsible\"\u003eThis sensor works with different brushless motors and different PWM driving methods. Its lightweight 23 × 10 × 2mm body, 3.5–8.4V working voltage range, 2–14S motor wire voltage range, and 1000–300000rpm measuring range for 2-pole brushless motors make it a practical accessory for advanced ESC and helicopter power-system setup.\u003c\/p\u003e\n\n\u003cp class=\"collapsible\"\u003eUse this RPM sensor only when your ESC, flybarless system, governor system, or receiver-side electronics require an external RPM signal input. Always confirm voltage supply, signal wiring, motor wire connection, and system compatibility before installation.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size: 18px; font-weight: bold; margin: 24px 0 10px; color: #000; border-bottom: 1px solid #eee; padding-bottom: 6px;\"\u003eQuick Fit Check\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Detects brushless motor wire voltage changes and outputs an RPM signal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest for:\u003c\/strong\u003e Compatible governor systems, V-Bar-style RPM signal applications, and supported ESC \/ flight control setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor type:\u003c\/strong\u003e Brushless motor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking voltage:\u003c\/strong\u003e 3.5–8.4V.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor wire voltage range:\u003c\/strong\u003e 2–14S LiPo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRPM range:\u003c\/strong\u003e 1000–300000rpm for 2-pole brushless motors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 23 × 10 × 2mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e Approx. 6g including input and output wires.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImportant:\u003c\/strong\u003e Leads A and B connect to any two brushless motor wires and do not require polarity matching.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"font-size: 18px; font-weight: bold; margin: 24px 0 10px; color: #000; border-bottom: 1px solid #eee; padding-bottom: 6px;\"\u003eProduct Specifications\u003c\/h2\u003e\n\n\u003ctable style=\"width: 100%; display: block; overflow-x: auto; border-collapse: separate !important; border-spacing: 0 8px !important; font-size: 14px; line-height: 1.3;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eBrand\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003eHobbywing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eProduct Name\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003eRPM Sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eFunction\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003eDetects brushless motor wire voltage changes and outputs RPM signal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eWorking Voltage\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003e3.5–8.4V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eCurrent\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003e1–5mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eMotor Wire Voltage Range\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003e2–14S LiPo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eRPM Range\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003e1000–300000rpm for 2-pole brushless motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eWorking Temperature\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003e0–50°C \/ 32–122°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eSize (L × W × H)\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003e23 × 10 × 2mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eApprox Weight\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003e6g including input and output wires\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eTypical Application\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003eRPM signal input for compatible speed control systems and V-Bar-style governor systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; background: #E60073; color: #fff; font-weight: bold; padding: 12px; border-radius: 6px 0 0 6px;\"\u003eStock Number\u003c\/td\u003e\n\u003ctd style=\"background: #f7f7f7; padding: 12px; border-radius: 0 6px 6px 0;\"\u003e86060041\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2 style=\"font-size: 18px; font-weight: bold; margin: 24px 0 10px; color: #000; border-bottom: 1px solid #eee; padding-bottom: 6px;\"\u003eWhat the RPM Sensor Does\u003c\/h2\u003e\n\n\u003cp\u003e\nThe Hobbywing RPM Sensor reads voltage changes from the brushless motor wires and converts that information into an RPM signal. This makes it useful when a compatible governor system, flight controller, flybarless unit, or ESC-related system needs a separate motor speed signal.\n\u003c\/p\u003e\n\n\u003cp\u003e\nOne typical application is using the sensor as an RPM signal source for V-Bar-style systems in RC helicopters. The sensor does not control throttle by itself, and it does not replace the ESC. It only provides RPM signal output to a compatible system that can read and use that signal.\n\u003c\/p\u003e\n\n\u003cdiv class=\"cnhl-note-box\"\u003e\n\u003cstrong\u003eCompatibility note:\u003c\/strong\u003e This sensor should only be used with systems that support external RPM signal input. Check your flybarless controller, governor system, ESC manual, and wiring requirement before installation.\n\u003c\/div\u003e\n\n\u003ch2 style=\"font-size: 18px; font-weight: bold; margin: 24px 0 10px; color: #000; border-bottom: 1px solid #eee; padding-bottom: 6px;\"\u003eHow to Wire the RPM Sensor\u003c\/h2\u003e\n\n\u003cp\u003e\nThe sensor has two motor-side leads and one signal-side lead group. Leads A and B connect to any two wires of the brushless motor. Polarity does not matter for the A and B motor wire connection.\n\u003c\/p\u003e\n\n\u003cp\u003e\nLead C is the three-color signal wire with a connector at the end. The black wire is ground, the red wire connects to 3.3V or 5V to supply the sensor, and the white wire outputs the RPM signal.\n\u003c\/p\u003e\n\n\u003cdiv class=\"cnhl-note-box\"\u003e\n\u003cstrong\u003eWiring note:\u003c\/strong\u003e Connect A and B to any two brushless motor wires without polarity concern. On the three-color lead, black is ground, red is 3.3V or 5V sensor power, and white is RPM signal output.\n\u003c\/div\u003e\n\n\u003cdiv class=\"cnhl-feature-section\"\u003e\n  \u003cp\u003e\u003cimg class=\"cnhl-feature-img\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/01_2b4243d4-5dba-4f38-bbc8-2a601087a889.png\" alt=\"Hobbywing RPM Sensor wiring diagram for brushless motor RPM signal output\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2 style=\"font-size: 18px; font-weight: bold; margin: 24px 0 10px; color: #000; border-bottom: 1px solid #eee; padding-bottom: 6px;\"\u003eFor RC Helicopter Governor and V-Bar-Style Setups\u003c\/h2\u003e\n\n\u003cp\u003e\nIn electric helicopter setups, RPM signal quality can be important for governor performance and head-speed monitoring. The Hobbywing RPM Sensor can be used as a compact signal source when the helicopter electronics require an external RPM input.\n\u003c\/p\u003e\n\n\u003cp\u003e\nBecause different helicopters, ESCs, motors, and flybarless systems use different wiring layouts, the RPM sensor should be treated as a setup accessory rather than a universal plug-and-play module. Confirm your system wiring before applying power.\n\u003c\/p\u003e\n\n\u003ch2 style=\"font-size: 18px; font-weight: bold; margin: 24px 0 10px; color: #000; border-bottom: 1px solid #eee; padding-bottom: 6px;\"\u003eInstallation and Safety Notes\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eDo not disassemble, modify, or repair the RPM sensor yourself.\u003c\/li\u003e\n\u003cli\u003eDo not allow water or moisture to enter the sensor.\u003c\/li\u003e\n\u003cli\u003eKeep wiring secure and away from rotating parts, gears, motor shafts, and high-heat areas.\u003c\/li\u003e\n\u003cli\u003eConfirm 3.3V or 5V sensor power before connecting the signal-side lead.\u003c\/li\u003e\n\u003cli\u003eCheck motor wire routing carefully when working with 2–14S LiPo power systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"font-size: 18px; font-weight: bold; margin: 24px 0 10px; color: #000; border-bottom: 1px solid #eee; padding-bottom: 6px;\"\u003eOfficial Manual\u003c\/h2\u003e\n\n\u003cp\u003e\nDownload the official manual here: \u003ca style=\"color: #E60073; text-decoration: underline;\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/HOBBYWING-SM824DUL-RPM_Sensor_User_Manual.pdf\"\u003eHobbywing RPM Sensor User Manual\u003c\/a\u003e.\n\u003c\/p\u003e\n\n\u003ch2 style=\"font-size: 18px; font-weight: bold; margin: 24px 0 10px; color: #000; border-bottom: 1px solid #eee; padding-bottom: 6px;\"\u003eRecommended Collection Paths\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003ca style=\"color: #E60073; text-decoration: underline;\" href=\"https:\/\/chinahobbyline.com\/collections\/esc-programmers-accessories\"\u003eESC Programmers \u0026amp; Accessories\u003c\/a\u003e — browse Hobbywing setup tools, telemetry adapters, RPM sensors, programmers, and ESC accessories.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color: #E60073; text-decoration: underline;\" href=\"https:\/\/chinahobbyline.com\/collections\/hobbywing-platinum-escs\"\u003eHobbywing Platinum ESCs\u003c\/a\u003e — compare Platinum aircraft ESC options for helicopter and aircraft setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color: #E60073; text-decoration: underline;\" href=\"https:\/\/chinahobbyline.com\/collections\/hobbywing-escs\"\u003eHobbywing ESCs\u003c\/a\u003e — explore the full Hobbywing ESC lineup.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca style=\"color: #E60073; text-decoration: underline;\" href=\"https:\/\/chinahobbyline.com\/collections\/cnhl-helicopter-batteries\"\u003eCNHL Helicopter Batteries\u003c\/a\u003e — battery options for electric helicopter power systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"font-size: 18px; font-weight: bold; margin: 24px 0 10px; color: #000; border-bottom: 1px solid #eee; padding-bottom: 6px;\"\u003eFAQ: Hobbywing RPM Sensor\u003c\/h2\u003e\n\n\u003ch3 style=\"font-size: 15px; font-weight: bold; margin: 14px 0 8px; color: #000;\"\u003eWhat does the Hobbywing RPM Sensor do?\u003c\/h3\u003e\n\u003cp\u003e\nIt detects voltage changes from brushless motor wires and outputs an RPM signal for compatible speed control, governor, or flybarless systems.\n\u003c\/p\u003e\n\n\u003ch3 style=\"font-size: 15px; font-weight: bold; margin: 14px 0 8px; color: #000;\"\u003eIs the RPM Sensor an ESC programmer?\u003c\/h3\u003e\n\u003cp\u003e\nNo. It is not an ESC programmer or programming card. It is an RPM signal sensor used to provide motor speed information to compatible systems.\n\u003c\/p\u003e\n\n\u003ch3 style=\"font-size: 15px; font-weight: bold; margin: 14px 0 8px; color: #000;\"\u003eHow do I connect the RPM Sensor to the motor?\u003c\/h3\u003e\n\u003cp\u003e\nConnect leads A and B to any two brushless motor wires. Polarity does not matter for these two motor-side leads.\n\u003c\/p\u003e\n\n\u003ch3 style=\"font-size: 15px; font-weight: bold; margin: 14px 0 8px; color: #000;\"\u003eWhat do the three signal wires do?\u003c\/h3\u003e\n\u003cp\u003e\nOn lead C, the black wire is ground, the red wire connects to 3.3V or 5V to power the sensor, and the white wire outputs the RPM signal.\n\u003c\/p\u003e\n\n\u003ch3 style=\"font-size: 15px; font-weight: bold; margin: 14px 0 8px; color: #000;\"\u003eWhat voltage range does the RPM Sensor support?\u003c\/h3\u003e\n\u003cp\u003e\nThe sensor working voltage is 3.5–8.4V, and the motor wire signal voltage range supports 2–14S LiPo systems.\n\u003c\/p\u003e\n\n\u003ch3 style=\"font-size: 15px; font-weight: bold; margin: 14px 0 8px; color: #000;\"\u003eCan I use it with V-Bar-style helicopter systems?\u003c\/h3\u003e\n\u003cp\u003e\nYes, one typical application is using it as an RPM sensor for V-Bar-style systems, as long as your setup supports this kind of external RPM signal input.\n\u003c\/p\u003e","brand":"ChinaHobbyLine","offers":[{"title":"Global","offer_id":48554085613782,"sku":"RPMSENSOR GL","price":4.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/1.avif?v=1783477780","url":"https:\/\/chinahobbyline.com\/cs\/products\/hobbywing-rpm-sensor","provider":"ChinaHobbyLine","version":"1.0","type":"link"}