{"product_id":"xnxxsm1ss-honeywell-smart-sensor-no-modbus-rtu","title":"XNXXSM1SS Honeywell Smart Sensor NO Modbus RTU","description":"\u003ch2\u003e\u003cstrong\u003eHoneywell XNXXSM1SS Smart Sensor for Nitric Oxide (NO)\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Honeywell\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e XNXXSM1SS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGas Type:\u003c\/strong\u003e Nitric Oxide (NO) \/ Nitrogen Monoxide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDefault Full Scale Range:\u003c\/strong\u003e 100 ppm (selectable range not applicable)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLower Detectable Limit:\u003c\/strong\u003e 3 ppm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccuracy:\u003c\/strong\u003e ±2 ppm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResponse Time (T50):\u003c\/strong\u003e \u0026lt; 15 seconds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResponse Time (T90):\u003c\/strong\u003e \u0026lt; 30 seconds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCalibration Gas Range:\u003c\/strong\u003e 30% to 70% of selected full scale\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDefault Calibration Point:\u003c\/strong\u003e 50 ppm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhysical Layer:\u003c\/strong\u003e Isolated RS485\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBaud Rate:\u003c\/strong\u003e 1200 to 19.2K baud\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Nodes:\u003c\/strong\u003e 254 XNX compatible transmitters only\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtocol:\u003c\/strong\u003e Modbus RTU\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnections:\u003c\/strong\u003e RS485+, RS485-, Drain\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e -20°C to 55°C (-4°F to 131°F)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions (FAQ)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: Is the Honeywell XNXXSM1SS a new and original product?\u003c\/strong\u003e\u003cbr\u003eA: Yes, we supply only brand new, original modules. We do not sell used or refurbished units.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: What is the maximum number of nodes on the Modbus network?\u003c\/strong\u003e\u003cbr\u003eA: The network supports up to 254 XNX compatible transmitters. The \u003cstrong\u003eXNXXSM1SS\u003c\/strong\u003e acts as one node on this RS485 bus.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: Can I install this module in the field by myself?\u003c\/strong\u003e\u003cbr\u003eA: Only a qualified service engineer should perform field installation to avoid damage or improper wiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: How long does shipping take and which carriers do you use?\u003c\/strong\u003e\u003cbr\u003eA: We dispatch orders within 5 days via FedEx, UPS, or DHL. Delivery times vary by destination but typically range from 2 to 5 business days.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: Does this module work with Foundation Fieldbus or relays simultaneously?\u003c\/strong\u003e\u003cbr\u003eA: No, the Modbus output is mutually exclusive with relays and Foundation Fieldbus options. You must choose one communication method.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: What is the default calibration point and range?\u003c\/strong\u003e\u003cbr\u003eA: The default calibration point is 50 ppm. You can select a calibration gas between 30% and 70% of the full scale range (100 ppm default).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: Do you accept returns if the product does not meet our needs?\u003c\/strong\u003e\u003cbr\u003eA: Yes, we support returns within 30 days of delivery. The module must be in new, unused condition with all original packaging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: What is the operating temperature range for this sensor?\u003c\/strong\u003e\u003cbr\u003eA: The \u003cstrong\u003eHoneywell XNXXSM1SS\u003c\/strong\u003e operates reliably from -20°C (-4°F) to 55°C (131°F).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e© 2026 NexAuto Technology Limited. All rights reserved.\u003cbr\u003eOriginal Source: \u003ca href=\"https:\/\/www.nex-auto.com\/\"\u003ehttps:\/\/www.nex-auto.com\/\u003c\/a\u003e\u003cbr\u003eContact: \u003ca href=\"mailto:sales@nex-auto.com\"\u003esales@nex-auto.com\u003c\/a\u003e\u003cbr\u003ePhone: \u003ca href=\"https:\/\/wa.me\/8615392429628\"\u003e+86 153 9242 9628\u003c\/a\u003e\u003c\/p\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":48350547345666,"sku":"XNXXSM1SS","price":249.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7280\/6146\/files\/XNXXSM1SS.jpg?v=1787194031","url":"https:\/\/www.nex-auto.com\/products\/xnxxsm1ss-honeywell-smart-sensor-no-modbus-rtu","provider":"NexAuto Technology Limited","version":"1.0","type":"link"}