{"product_id":"rs485-carbon-monoxide-co-sensor-modbus-rtu-air-quality-monitoring-carbon-monoxide-and-temperature-ss100069114","title":"RS485 Carbon Monoxide CO Sensor: Modbus RTU, Air Quality Monitoring, Carbon Monoxide and Temperature","description":"\u003cp\u003eThe RS485 Carbon Monoxide CO Sensor is a compact, wall-mounted sensor widely used in industrial processes, environmental monitoring, smart-home air quality systems, and laboratory research. It measures CO concentrations from 0 to 2000 ppm—with a resolution of 10 ppm—and provides calibrated temperature data. Integrated temperature compensation, linear output, and low baseline drift help maintain stable readings under changing conditions. For easy integration, it supports RS485 Modbus RTU communication and low-power 5–28 V DC operation. Moreover, its IP50 design, reverse-polarity protection, and built-in surge, TVS, and ESD protection support reliable long-term use.\u003c\/p\u003e\r\n\u003cp\u003eThis sensor is available with an RS485 Modbus RTU interface. It is compatible with the \u003ca href=\"https:\/\/www.seeedstudio.com\/SenseCAP-S2100-LoRaWAN-Data-Logger-p-5361.html\"\u003eSenseCAP S2100 LoRaWAN® Data Logger\u003c\/a\u003e, enabling low-power, long-range data transmission over LoRaWAN® networks.\u003c\/p\u003e\r\n\u003cdiv class=\"tips\" style=\"display: table; table-layout: fixed; background-color: #d9f5f3; height: auto; width: 100%;\"\u003e\r\n\u003cdiv class=\"left-icon\" style=\"display: table-cell; vertical-align: middle; background-color: #83dfd3; padding-top: 10px; box-sizing: border-box; height: auto; width: 38px; text-align: center;\"\u003e\u003cimg style=\"width: 26px; vertical-align: middle;\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/static.seeed.cc\/seeed\/icon\/Tip.svg\" alt=\"attention icon\"\u003e\u003c\/div\u003e\r\n\u003cdiv class=\"right-desc\" style=\"display: table-cell; vertical-align: middle; padding-left: 15px; box-sizing: border-box; width: calc(95% - 38px);\"\u003e\r\n\u003cp style=\"font-weight: bold; margin-top: 10px;\"\u003e\u003cstrong\u003eNote: This sensor is rated IP50 and is designed for indoor environments. It is not suitable for direct outdoor exposure or locations with water ingress risks.\u003c\/strong\u003e\u003c\/p\u003e\r\n\u003c\/div\u003e\r\n\u003c\/div\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eIntegrated CO and Temperature Monitoring:\u003c\/strong\u003e Measures carbon monoxide concentrations from 0 to 2000 ppm—with a resolution of 10 ppm—and provides calibrated temperature data. Moreover, its T90 response time of less than 35 seconds enables timely detection of concentration changes.\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp\u003e\u003cimg src=\"https:\/\/www.seeedstudio.com\/media\/catalog\/product\/1\/0\/100069114-feature_img_1.png\" alt=\"image\"\u003e\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eTemperature Compensation and Flexible Calibration\u003c\/strong\u003e:Supports both sensor-sensitivity calibration and standard-gas calibration. Zero and span calibration help improve measurement accuracy. Meanwhile, configurable temperature-compensation coefficients and temperature-offset adjustment reduce the influence of changing ambient temperatures.\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp\u003e\u003cimg src=\"https:\/\/www.seeedstudio.com\/media\/catalog\/product\/1\/0\/100069114-feature_img_2.png\" alt=\"image\"\u003e\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eIndustrial RS485 Modbus RTU Communication:\u003c\/strong\u003e Uses the RS485 Modbus RTU interface for reliable long-distance data transmission and connection of multiple sensors on the same communication bus. Configurable device address, baud rate, parity, and data format make integration with industrial controllers, data loggers, and monitoring systems more flexible.\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp\u003e\u003cimg src=\"https:\/\/www.seeedstudio.com\/media\/catalog\/product\/1\/0\/100069114-feature_img_3.png\" alt=\"image\"\u003e\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eCompact, Low-Power and Protected Design:\u003c\/strong\u003e Features a compact, wall-mounted structure and supports a wide 5–28 V DC power supply. Its low-power design helps reduce energy consumption. Furthermore, surge, reverse-polarity, TVS, and ESD protection improve operational reliability reliability—supporting an expected service life of at least two years in air.\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp\u003e\u003cimg src=\"https:\/\/www.seeedstudio.com\/media\/catalog\/product\/1\/0\/100069114-feature_img_4.png\" alt=\"image\"\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cstrong\u003eRecommendation for S2100 Data Logger\u003c\/strong\u003e\u003c\/p\u003e\r\n\u003cp\u003eSenseCAP S2100 Data Logger can connect to Modbus RS485\/Analog\/GPIO industrial sensors including the \u003ca href=\"https:\/\/www.seeedstudio.com\/compatibility-list.html\"\u003eGrow Your Idea\u003c\/a\u003e and transmit data from sensors to the LoRaWAN network. Benefiting from its high robustness and waterproof and dustproof enclosure, the S2100 data logger can work under harsh environments such as high UV exposure, heavy rain, dusty conditions, etc. which is ideal for outdoor use. Based on LoRaWAN, it can cover a long transmission range of 2km in urban scenes and 10km in line-of-sight while keeping lower power consumption. Equipped with built-in Bluetooth and app service for OTA configuration and remote management, it enables quick setup and update. It can be battery-powered or connected to a 12V external power supply. When the 12V power supply is connected, the replaceable built-in battery is set to be used as the backup power supply.\u003c\/p\u003e\r\n\u003cp\u003e\u003cimg src=\"https:\/\/www.seeedstudio.com\/media\/catalog\/product\/1\/0\/100069114-feature_img_5.png\" alt=\"image\"\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cstrong\u003eAttention:\u003c\/strong\u003e\u003c\/p\u003e\r\n\u003cp\u003eIf you need to connect sensors or an external power supply for the S2100, please refer to the wiring diagram below. Please note that the sensor supply voltage range is 5-28 V, while the external power supply for the S2100 must be a stable 12 V supply.\u003c\/p\u003e\r\n\u003cp\u003e\u003cimg src=\"https:\/\/www.seeedstudio.com\/media\/catalog\/product\/1\/0\/100069114-feature_img_6.png\" alt=\"image\"\u003e\u003c\/p\u003e\r\n\u003cp\u003eSeeed also provides the \u003ca href=\"https:\/\/solution.seeedstudio.com\/product\/software-cloud-sensecap-portal\/\"\u003eSenseCAP Portal\u003c\/a\u003e and \u003ca href=\"https:\/\/solution.seeedstudio.com\/product\/software-cloud-sensecap-app\/\"\u003eSense\u003c\/a\u003e\u003ca href=\"https:\/\/solution.seeedstudio.com\/product\/software-cloud-sensecap-app\/\"\u003eCraft\u003c\/a\u003e to help users better manage and check data remotely.\u003c\/p\u003e\r\n\u003cp\u003e\u003cimg src=\"https:\/\/www.seeedstudio.com\/media\/catalog\/product\/1\/0\/100069114-feature_img_7.png\" alt=\"image\"\u003e\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003ctable\u003e\n\u003ccolgroup\u003e\n\u003ccol\u003e\n\u003ccol\u003e\n\u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\"\u003e\u003cb\u003eGeneral Parameters\u003c\/b\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Model\u003c\/td\u003e\n\u003ctd\u003eS-CO-01A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor Description\u003c\/td\u003e\n\u003ctd\u003eRS485 Carbon Monoxide CO Sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Interface\u003c\/td\u003e\n\u003ctd\u003eRS485, Modbus-RTU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDefault Serial Communication\u003c\/td\u003e\n\u003ctd\u003eSlave address: 1;\u003cbr\u003ebaud rate: 9600 bps;\u003cbr\u003edata bits: 8; \u003cbr\u003estop bits: 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e5-28V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003equiescent current \u0026lt;2mA @12V DC; \u003cbr\u003emaximum current during measurement \u0026lt;7mA @12V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-20 ~ 50 ℃\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Humidity\u003c\/td\u003e\n\u003ctd\u003e15 to 90 %RH non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIP Rating\u003c\/td\u003e\n\u003ctd\u003eIP50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation\u003c\/td\u003e\n\u003ctd\u003eWall mounting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable Length\u003c\/td\u003e\n\u003ctd\u003e2 meters \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eSensor body: 111 x 25.5 mm (Length x Diameter)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\r\n\u003ctable\u003e\n\u003ccolgroup\u003e\n\u003ccol\u003e\n\u003ccol\u003e\n\u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\"\u003e\u003cb\u003eCarbon Monoxide Concentration Measurement\u003c\/b\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRange\u003c\/td\u003e\n\u003ctd\u003e0-2000ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e10ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensitivity \u003c\/td\u003e\n\u003ctd\u003e0.028±0.010 uA\/ppm \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResponse Time(T90)\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;35 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\"\u003e\u003cb\u003eTemperature Measurement\u003c\/b\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRange\u003c\/td\u003e\n\u003ctd\u003e- 40～80℃\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e0.01℃\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy \u003c\/td\u003e\n\u003ctd\u003e± 0.3℃\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\r\n\u003cp\u003e\u003cstrong\u003eWiring Diagram\u003c\/strong\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cimg src=\"https:\/\/www.seeedstudio.com\/media\/catalog\/product\/1\/0\/100069114-spec_img_1.png\" alt=\"image\"\u003e\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cul\u003e\r\n\u003cli\u003eIndustrial Process Monitoring\u003c\/li\u003e\r\n\u003cli\u003eEnvironmental Monitoring\u003c\/li\u003e\r\n\u003cli\u003eSmart Home Air Quality Monitoring\u003c\/li\u003e\r\n\u003cli\u003eLaboratory and Scientific Research\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp\u003e\u003cimg src=\"https:\/\/www.seeedstudio.com\/media\/catalog\/product\/1\/0\/100069114-application_img_1.png\" alt=\"image\"\u003e\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cdiv data-page-id=\"NvBedgSCporSyOxo2r1cxdT9nrc\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"\u003e\r\n\u003cdiv class=\"ace-line ace-line old-record-id-HkRrdqbpgopgUSxLhJncN2sEn9T\"\u003e\u003ca href=\"https:\/\/files.seeedstudio.com\/products\/100069114\/res\/RS485%20Carbon%20Monoxide%20CO%20Sensor%20User%20Manual.pdf\"\u003eDatasheet for Carbon Monoxide CO Sensor\u003c\/a\u003e\u003c\/div\u003e\r\n\u003c\/div\u003e\u003cbr\u003e\u003cbr\u003e\u003ctable\u003e\r\n\u003ctr\u003e\n\u003ctd\u003eCarbon Monoxide CO Sensor\u003c\/td\u003e\n\u003ctd\u003ex1\u003c\/td\u003e\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003ctd\u003eMounting Bracket\u003c\/td\u003e\n\u003ctd\u003ex1\u003c\/td\u003e\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003ctd\u003ePlastic Screw\u003c\/td\u003e\n\u003ctd\u003ex2\u003c\/td\u003e\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003ctd\u003eMetal Screw\u003c\/td\u003e\n\u003ctd\u003ex2\u003c\/td\u003e\n\u003c\/tr\u003e\r\n\u003c\/table\u003e\u003cbr\u003e\u003cbr\u003e\u003cdiv class=\"certification\"\u003e\n    \u003c\/div\u003e\n\n\n\u003ctable class=\"table\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n                  \u003ctd class=\"name\"\u003eHSCODE\u003c\/td\u003e\n                  \u003ctd\u003e9027100090\u003c\/td\u003e\n              \u003c\/tr\u003e\n\u003ctr\u003e\n                  \u003ctd class=\"name\"\u003eUSHSCODE\u003c\/td\u003e\n                  \u003ctd\u003e9027894590\u003c\/td\u003e\n              \u003c\/tr\u003e\n\u003ctr\u003e\n                  \u003ctd class=\"name\"\u003eUPC\u003c\/td\u003e\n                  \u003ctd\u003e \u003c\/td\u003e\n              \u003c\/tr\u003e\n\u003ctr\u003e\n                  \u003ctd class=\"name\"\u003eEUHSCODE\u003c\/td\u003e\n                  \u003ctd\u003e9027109000\u003c\/td\u003e\n              \u003c\/tr\u003e\n\u003ctr\u003e\n                  \u003ctd class=\"name\"\u003eCOO\u003c\/td\u003e\n                  \u003ctd\u003e \u003c\/td\u003e\n              \u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\n\n\u003ctable class=\"table\"\u003e\u003ctbody\u003e\n    \u003c\/tbody\u003e\u003c\/table\u003e\n\u003cbr\u003e\u003cbr\u003eArray\u003cbr\u003e\u003cbr\u003e","brand":"Seeed Studio","offers":[{"title":"Default Title","offer_id":42659517956178,"sku":"SS100069114","price":294.86,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/0383\/files\/100069114-gallery_img_2.jpg?v=1788065041","url":"https:\/\/www.pakronics.com.au\/products\/rs485-carbon-monoxide-co-sensor-modbus-rtu-air-quality-monitoring-carbon-monoxide-and-temperature-ss100069114","provider":"Pakronics®","version":"1.0","type":"link"}