{"product_id":"xnx-btai-mhnnn-honeywell-modbus-hart-4-20ma-transmitter","title":"XNX-BTAI-MHNNN Honeywell Modbus HART 4-20mA Transmitter","description":"\u003ch2\u003e\u003cstrong\u003eXNX-BTAI-MHNNN Universal Transmitter by Honeywell\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Technical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Honeywell – a global authority in industrial safety and gas detection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e \u003cstrong\u003eXNX-BTAI-MHNNN\u003c\/strong\u003e – part of the XNX Universal Transmitter series.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput:\u003c\/strong\u003e HART® protocol over 4-20mA analog loop for reliable data transmission.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApproval:\u003c\/strong\u003e Approval B – certified for use in hazardous industrial areas.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnclosure:\u003c\/strong\u003e Aluminium (Material A) with ¾\" NPT entries (Entry T) for North American standards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePersonality:\u003c\/strong\u003e Interface I – designed for infrared sensors like Searchline Excel and Searchpoint Optima.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommunication Options:\u003c\/strong\u003e Modbus (Option M) and Local HART (Option H) for flexible system integration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSensor:\u003c\/strong\u003e No sensor included (Range NNN) – compatible with external 4-20mA devices.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e -40°C to +65°C (-40°F to +149°F) for extreme environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Humidity:\u003c\/strong\u003e 0-99% RH non-condensing for reliable performance in wet conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Pressure:\u003c\/strong\u003e 90-110 kPa for normal atmospheric applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage Conditions:\u003c\/strong\u003e -40°C to +75°C (-40°F to 167°F), 0-99% non-condensing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 16cm x 19.7cm x 11.4cm (6.1\" x 7.8\" x 4.5\") – compact footprint.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 5.0 kg – lightweight aluminium construction for easy handling.\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\u003eWhat sensors are compatible with this transmitter?\u003c\/strong\u003e The Interface I personality supports Searchline Excel, Searchpoint Optima, and generic 4-20mA infrared sensors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoes this unit include a sensor?\u003c\/strong\u003e No, the NNN range means no sensor is included. You must purchase a compatible sensor separately.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat communication protocols does it support?\u003c\/strong\u003e It supports HART® over 4-20mA, Modbus (RS-485), and Local HART for flexible integration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCan I use this transmitter outdoors?\u003c\/strong\u003e Yes, it operates from -40°C to +65°C with 0-99% RH and 90-110 kPa pressure range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat mounting options are available?\u003c\/strong\u003e Surface mount (standard), pipe mount (optional kit for Ø100-150mm), and ceiling mount (optional bracket).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat is the difference between Approval A and Approval B?\u003c\/strong\u003e Approval B indicates a different certification scope – please refer to the datasheet for specific zone classifications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIs this unit SIL rated?\u003c\/strong\u003e The \u003cstrong\u003eXNX-BTAI-MHNNN\u003c\/strong\u003e meets SIL 2 requirements for functional safety applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: 0.9em; color: #555;\"\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 | Phone: \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":48371506086146,"sku":"XNX-BTAI-MHNNN","price":250.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7280\/6146\/files\/XNX-BTAI-MHNNN.jpg?v=1787539768","url":"https:\/\/www.nex-auto.com\/products\/xnx-btai-mhnnn-honeywell-modbus-hart-4-20ma-transmitter","provider":"NexAuto Technology Limited","version":"1.0","type":"link"}