{"product_id":"rs485-oxygen-concentration-o-sensor-modbus-rtu-indoor-oxygen-concentration-detection-oxygen-partial-pressure-temperature-and-barometric-pressure-monitoring-ss100046309","title":"RS485 Oxygen Concentration O₂ Sensor: Modbus RTU, Indoor Oxygen Concentration Detection, Oxygen Partial Pressure, Temperature and Barometric Pressure Monitoring","description":"\u003cp\u003eThe RS485 Oxygen Concentration Sensor uses luminescence-quenching optical technology to measure ambient oxygen partial pressure, oxygen concentration, temperature, and barometric pressure. For easy system integration, it supports RS485 Modbus RTU communication. Its compact IP50 wall-mounted enclosure incorporates an SST® O₂ sensing element with a service life of more than two years, ensuring high accuracy and excellent stability. Meanwhile, the low-power 9–28 V DC operation, together with reverse-polarity, surge, TVS, and ESD protection, enhances reliability during long-term use. With these features, the sensor is well suited for scientific research, HVAC and ventilation control, routine weather monitoring, and environmental monitoring.\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;\"\u003eNote: \u003c\/p\u003e\r\n\u003cdiv data-page-id=\"Mc1Hdp0UvoBCTnxgbKhcbSkQnRe\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"\u003e\r\n\u003cdiv class=\" old-record-id-Fjvmdf8RVokrz9xKzygcV9GBnqh\"\u003eThis 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\/div\u003e\r\n\u003c\/div\u003e\r\n\u003c\/div\u003e\r\n\u003c\/div\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eComprehensive Oxygen Monitoring:\u003c\/strong\u003e Measures ambient oxygen partial pressure, oxygen concentration, temperature, and barometric pressure in one device. This provides the essential parameters required for evaluating oxygen conditions and understanding how environmental changes affect oxygen concentration.\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp\u003e\u003cimg src=\"https:\/\/www.seeedstudio.com\/media\/catalog\/product\/1\/0\/100046309-feature_img_1.png\" alt=\"image\"\u003e\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eConfigurable Measurement and Data Output:\u003c\/strong\u003e Provides both original and calibrated values for oxygen partial pressure, oxygen concentration, temperature, and barometric pressure. Configurable measurement offsets, temperature units, and floating-point byte order simplify data adjustment and ensure compatibility with different controllers and data-acquisition systems.\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp\u003e\u003cimg src=\"https:\/\/www.seeedstudio.com\/media\/catalog\/product\/1\/0\/100046309-feature_img_2.png\" alt=\"image\"\u003e\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eFlexible RS485 System Integration:\u003c\/strong\u003e Uses RS485 Modbus-RTU for reliable long-distance communication and supports multiple sensors on one bus. Configurable device address, baud rate, parity, stop bits, and data format simplify integration with PLCs, data loggers, controllers, and monitoring systems.\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp\u003e\u003cimg src=\"https:\/\/www.seeedstudio.com\/media\/catalog\/product\/1\/0\/100046309-feature_img_3.png\" alt=\"image\"\u003e\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eReliable Low-Power Indoor Operation:\u003c\/strong\u003e Operates from a 9–28 V DC supply with an average current below 10 mA at 12 V DC. Its compact IP50 wall-mounted design allows for easy installation. In addition, reverse-polarity, surge, and built-in TVS\/ESD protection improve reliability against wiring errors and electrical interference.\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp\u003e\u003cimg src=\"https:\/\/www.seeedstudio.com\/media\/catalog\/product\/1\/0\/100046309-feature_img_4.png\" alt=\"image\"\u003e\u003c\/p\u003e\r\n\u003ch3\u003e\u003cstrong\u003eRecommendation for S2100 Data Logger\u003c\/strong\u003e\u003c\/h3\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\/100046309-feature_img_5.png\" alt=\"image\"\u003e\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;\"\u003eNote: \u003c\/p\u003e\r\n\u003cdiv data-page-id=\"Mc1Hdp0UvoBCTnxgbKhcbSkQnRe\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"\u003e\r\n\u003cdiv class=\"ace-line ace-line old-record-id-CLdydQVa8oR0lrx5aOOca1NZnfg\"\u003eThis sensor requires a 9–28 V power supply. If you use the S2100 for data acquisition, please note that its maximum sensor supply output is only 5 V. Therefore, the sensor must be powered by a separate external power supply. The S2100 can be externally powered with a stable 12 V DC input. Please ensure that an appropriate supply voltage is selected for each device.\u003c\/div\u003e\r\n\u003c\/div\u003e\r\n\u003c\/div\u003e\r\n\u003c\/div\u003e\r\n\u003cp\u003e\u003cimg src=\"https:\/\/www.seeedstudio.com\/media\/catalog\/product\/1\/0\/100046309-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\/100046309-feature_img_7.png\" alt=\"image\"\u003e\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003ctable style=\"width: 89.6893%;\"\u003e\n\u003ccolgroup\u003e\n\u003ccol style=\"width: 30.0664%;\"\u003e\n\u003ccol style=\"width: 69.9135%;\"\u003e\n\u003c\/colgroup\u003e\r\n\u003ctbody\u003e\r\n\u003ctr\u003e\r\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eGeneral Parameters\u003c\/strong\u003e\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd\u003eSensor Description\u003c\/td\u003e\r\n\u003ctd\u003eRS485 Oxygen Concentration O2 Sensor\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd\u003eOutput Interface\u003c\/td\u003e\r\n\u003ctd\u003eRS485, Modbus-RTU\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd\u003eDefault Serial Communication\u003c\/td\u003e\r\n\u003ctd\u003eSlave address: 1;\u003cbr\u003ebaud rate: 9600 bps;\u003cbr\u003edata bits: 8; \u003cbr\u003estop bits: 1;\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd\u003ePower Supply\u003c\/td\u003e\r\n\u003ctd\u003e9-28 V DC\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\r\n\u003ctd\u003eAverage Current: \u0026lt;10mA @12V DC \u003cbr\u003eMeasuring Current : \u0026lt;20mA @12V DC, measurement interval 1000ms\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\r\n\u003ctd\u003e10-45°C\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd\u003eOperating Humidity\u003c\/td\u003e\r\n\u003ctd\u003e0-95%RH,, non-condensing\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd\u003eIP Rating\u003c\/td\u003e\r\n\u003ctd\u003eIP50\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd\u003eCable Length\u003c\/td\u003e\r\n\u003ctd\u003e2 meters\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd\u003eInstallation\u003c\/td\u003e\r\n\u003ctd\u003eWall mounting\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd\u003eDimensions\u003c\/td\u003e\r\n\u003ctd\u003eSensor body: 111 * 25.5 mm (Length * Diameter)\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003c\/tbody\u003e\r\n\u003c\/table\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003ctable style=\"width: 90.0603%;\"\u003e\n\u003ccolgroup\u003e\n\u003ccol style=\"width: 30.8145%;\"\u003e\n\u003ccol style=\"width: 69.1683%;\"\u003e\n\u003c\/colgroup\u003e\r\n\u003ctbody\u003e\r\n\u003ctr\u003e\r\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eOxygen Partial Pressure\u003c\/strong\u003e\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd\u003eRange\u003c\/td\u003e\r\n\u003ctd\u003e0-300 mbar\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd\u003eAccuracy\u003c\/td\u003e\r\n\u003ctd\u003e\u0026lt;2% FS\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd\u003eResolution\u003c\/td\u003e\r\n\u003ctd\u003e0.1 mbar\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eOxygen Concentration\u003c\/strong\u003e\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd\u003eRange\u003c\/td\u003e\r\n\u003ctd\u003e0-25%\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd\u003eAccuracy\u003c\/td\u003e\r\n\u003ctd\u003eDetermined by the accuracy of oxygen partial pressure and barometric pressure\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd\u003eResolution\u003c\/td\u003e\r\n\u003ctd\u003e0.01%\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eTemperature Measurement\u003c\/strong\u003e\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd\u003eRange\u003c\/td\u003e\r\n\u003ctd\u003e-10-60°C\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd\u003eAccuracy\u003c\/td\u003e\r\n\u003ctd\u003e±2°C\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd\u003eResolution\u003c\/td\u003e\r\n\u003ctd\u003e0.1°C\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eBarometric Pressure Measurement\u003c\/strong\u003e\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd\u003eRange\u003c\/td\u003e\r\n\u003ctd\u003e500-1200 mbar\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd\u003eAccuracy\u003c\/td\u003e\r\n\u003ctd\u003e±5 mbar\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd\u003eResolution\u003c\/td\u003e\r\n\u003ctd\u003e1 mbar\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003c\/tbody\u003e\r\n\u003c\/table\u003e\r\n\u003ch3\u003e\u003cstrong\u003eWiring Diagram\u003c\/strong\u003e\u003c\/h3\u003e\r\n\u003cp\u003e\u003cimg src=\"https:\/\/www.seeedstudio.com\/media\/catalog\/product\/1\/0\/100046309-spec_img_1.png\" alt=\"image\"\u003e\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cul\u003e\r\n\u003cli\u003eScience research\u003c\/li\u003e\r\n\u003cli\u003eHVAC and Ventilation Systems\u003c\/li\u003e\r\n\u003cli\u003eHome and Industrial Environmental Monitoring\u003c\/li\u003e\r\n\u003cli\u003eIndoor Plant Growth Room Monitoring\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp\u003e\u003cimg src=\"https:\/\/www.seeedstudio.com\/media\/catalog\/product\/1\/0\/100046309-application_img_1.png\" alt=\"image\"\u003e\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cdiv data-page-id=\"Mc1Hdp0UvoBCTnxgbKhcbSkQnRe\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"\u003e\r\n\u003cdiv class=\"ace-line ace-line old-record-id-G4EqdYpvfoOQqhxZO8wcM08UnIc\"\u003e\u003ca href=\"https:\/\/files.seeedstudio.com\/products\/100046309\/res\/Data%20sheet%20for%20RS485%20Oxygen%20Concentration%20O2%20Sensor.pdf\"\u003eDatasheet for Oxygen Concentration Sensor\u003c\/a\u003e\u003c\/div\u003e\r\n\u003c\/div\u003e\u003cbr\u003e\u003cbr\u003e\u003ctable style=\"width: 67.9858%;\"\u003e\r\n\u003ctbody\u003e\r\n\u003ctr\u003e\r\n\u003ctd style=\"width: 91.4968%;\"\u003eOxygen Concentration Sensor\u003c\/td\u003e\r\n\u003ctd style=\"width: 8.43289%;\"\u003ex1\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd style=\"width: 91.4968%;\"\u003eMounting Bracket\u003c\/td\u003e\r\n\u003ctd style=\"width: 8.43289%;\"\u003ex1\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd style=\"width: 91.4968%;\"\u003ePlastic Screw\u003c\/td\u003e\r\n\u003ctd style=\"width: 8.43289%;\"\u003ex2\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd style=\"width: 91.4968%;\"\u003eMetal Screw\u003c\/td\u003e\r\n\u003ctd style=\"width: 8.43289%;\"\u003ex2\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003c\/tbody\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\u003e9027106000\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":42659517825106,"sku":"SS100046309","price":688.0,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/0383\/files\/100046309-gallery_img_2.jpg?v=1788065021","url":"https:\/\/www.pakronics.co.nz\/products\/rs485-oxygen-concentration-o-sensor-modbus-rtu-indoor-oxygen-concentration-detection-oxygen-partial-pressure-temperature-and-barometric-pressure-monitoring-ss100046309","provider":"Pakronics®","version":"1.0","type":"link"}