{"product_id":"honeywell-home-dt4r-black-room-thermostat-spare-dts42brfst22-wireless","title":"Honeywell Home DT4R Black Room Thermostat Spare | DTS42BRFST22 Wireless","description":"\u003cdiv style=\"font-family: Arial, sans-serif; color: #1e293b; line-height: 1.7;\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eHoneywell Home DT4R Black Wireless Room Thermostat Spare (DTS42BRFST22)\u003c\/strong\u003e is a replacement wireless thermostat head designed for compatible Honeywell Home heating control systems. Finished in modern black, it features a large, clear LED segment display, an easy-to-use wake-up button and backlit touch controls for convenient temperature adjustment.\u003c\/p\u003e\n\u003cp\u003eSupplied as a \u003cstrong\u003espare thermostat head only, with no receiver box included\u003c\/strong\u003e, this DT4R model is suitable for replacing an existing thermostat or expanding a compatible wireless heating system. It supports compatible Honeywell Home evohome and HCC100 systems through the Ramses II\/III RF protocol.\u003c\/p\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 8px; margin: 18px 0;\"\u003e\n\u003cspan style=\"background: #f1f5f9; padding: 7px 12px; border-radius: 20px; font-size: 13px;\"\u003eHoneywell Home\u003c\/span\u003e \u003cspan style=\"background: #f1f5f9; padding: 7px 12px; border-radius: 20px; font-size: 13px;\"\u003eDT4R Range\u003c\/span\u003e \u003cspan style=\"background: #f1f5f9; padding: 7px 12px; border-radius: 20px; font-size: 13px;\"\u003eWireless RF\u003c\/span\u003e \u003cspan style=\"background: #f1f5f9; padding: 7px 12px; border-radius: 20px; font-size: 13px;\"\u003eBlack Finish\u003c\/span\u003e \u003cspan style=\"background: #f1f5f9; padding: 7px 12px; border-radius: 20px; font-size: 13px;\"\u003eSpare Thermostat Only\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #fff7ed; border-left: 4px solid #d97706; padding: 14px 16px; margin: 20px 0;\"\u003e\n\u003cstrong style=\"color: #9a3412;\"\u003eImportant – Thermostat Only\u003c\/strong\u003e\n\u003cp style=\"margin: 6px 0 0;\"\u003eThis product does not include a receiver box. Ensure you already have a compatible Honeywell Home receiver or control system installed before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"color: #1e3a5f;\"\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003ch4 style=\"color: #334155;\"\u003e1. Replacement DT4R Wireless Thermostat\u003c\/h4\u003e\n\u003cp\u003eDesigned as a spare or replacement thermostat head for compatible Honeywell Home wireless heating systems, helping replace a faulty unit or add another thermostat to an existing installation.\u003c\/p\u003e\n\u003ch4 style=\"color: #334155;\"\u003e2. Compatible with evohome and HCC100\u003c\/h4\u003e\n\u003cp\u003eDesigned to pair with compatible Honeywell Home evohome and HCC100 Underfloor Multi-Zone Controller receivers, supporting suitable multi-zone heating applications.\u003c\/p\u003e\n\u003ch4 style=\"color: #334155;\"\u003e3. Modern Black Finish and Clear LED Display\u003c\/h4\u003e\n\u003cp\u003eThe slim black design complements contemporary interiors, while the large LED segment display provides a clear view of the temperature setting.\u003c\/p\u003e\n\u003ch4 style=\"color: #334155;\"\u003e4. Backlit Touch Controls and Wake-Up Button\u003c\/h4\u003e\n\u003cp\u003eBacklit captive touch buttons make temperature adjustments straightforward. The auto-off display helps conserve battery power, while the wake-up button brings the screen back on when needed.\u003c\/p\u003e\n\u003ch4 style=\"color: #334155;\"\u003e5. Ramses II\/III Wireless RF Communication\u003c\/h4\u003e\n\u003cp\u003eUses Honeywell Home's Ramses II\/III RF protocol on the 868.0–868.6 MHz frequency band to communicate with compatible receivers without requiring an internet connection.\u003c\/p\u003e\n\u003ch4 style=\"color: #334155;\"\u003e6. Battery-Powered Operation with Eco Mode\u003c\/h4\u003e\n\u003cp\u003ePowered by 2 x AA batteries, this thermostat offers wireless installation flexibility. Its built-in timed Eco mode applies a temperature reduction to help manage heating use.\u003c\/p\u003e\n\u003ch3 style=\"color: #1e3a5f;\"\u003eCompatibility and Applications\u003c\/h3\u003e\n\u003cp\u003eThe Honeywell Home DT4R Black Spare Thermostat is designed for compatible Honeywell Home wireless heating control systems and suitable on\/off appliances.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHoneywell Home evohome systems with compatible receivers.\u003c\/li\u003e\n\u003cli\u003eHoneywell Home HCC100 Underfloor Multi-Zone Controller.\u003c\/li\u003e\n\u003cli\u003eCompatible legacy Honeywell Home RF systems using the Ramses II\/III protocol.\u003c\/li\u003e\n\u003cli\u003eSuitable 24–230V on\/off gas boilers and combi boilers.\u003c\/li\u003e\n\u003cli\u003eCompatible heat pumps with an appropriate on\/off control input.\u003c\/li\u003e\n\u003cli\u003eSuitable zoning, underfloor heating, cooling and zone valve applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eImportant compatibility note:\u003c\/strong\u003e This thermostat is not suitable for directly controlling 240V electric heating circuits. Check your existing receiver and appliance requirements before purchasing.\u003c\/p\u003e\n\u003ch3 style=\"color: #1e3a5f;\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background: #f1f5f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003eHoneywell Home by Resideo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003e\u003cstrong\u003eProduct Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003eDT4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f1f5f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003eDT4R Black Spare Thermostat\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003e\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003eDTS42BRFST22\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f1f5f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003e\u003cstrong\u003eEAN \/ GTIN\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003e5059085002695\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003eSpare wireless thermostat head\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f1f5f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003e\u003cstrong\u003eColour\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003e\u003cstrong\u003ePower Supply\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003e2 x AA batteries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f1f5f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003e\u003cstrong\u003eSet Point Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003e5°C to 35°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003e\u003cstrong\u003eDisplay Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003e0°C to 40°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f1f5f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003e\u003cstrong\u003eSensor Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003e10k NTC thermistor at 25°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003e\u003cstrong\u003eRF Protocol\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003eRamses II\/III\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f1f5f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003e\u003cstrong\u003eRF Frequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003e868.0–868.6 MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003e\u003cstrong\u003eWireless Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003eApproximately 30 metres (residential)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f1f5f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003e\u003cstrong\u003eErP Contribution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003eClass V (+3%)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003e\u003cstrong\u003eDimensions (W x H x D)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003e101 x 101 x 54 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f1f5f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003e0.25 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003e2 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f1f5f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003e\u003cstrong\u003eReceiver Included\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e2e8f0;\"\u003eNo – thermostat head only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"color: #1e3a5f;\"\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4 style=\"color: #334155;\"\u003eDoes the Honeywell DT4R Black thermostat come with a receiver box?\u003c\/h4\u003e\n\u003cp\u003eNo. The DTS42BRFST22 is supplied as a spare thermostat head only. A compatible Honeywell Home receiver or control system must already be installed.\u003c\/p\u003e\n\u003ch4 style=\"color: #334155;\"\u003eWhat systems is the DT4R Black compatible with?\u003c\/h4\u003e\n\u003cp\u003eIt is specified for compatible Honeywell Home evohome and HCC100 Underfloor Multi-Zone Controller receivers, as well as compatible legacy RF systems using the Ramses II\/III protocol. Check your exact receiver model before ordering.\u003c\/p\u003e\n\u003ch4 style=\"color: #334155;\"\u003eCan I use this thermostat to control electric heating?\u003c\/h4\u003e\n\u003cp\u003eNo. It is not suitable for direct control of 240V electric heating circuits. It is intended for compatible 24–230V on\/off control applications.\u003c\/p\u003e\n\u003ch4 style=\"color: #334155;\"\u003eHow is the thermostat powered?\u003c\/h4\u003e\n\u003cp\u003eThe thermostat operates using 2 x AA batteries and does not require a wired mains power connection at the thermostat location.\u003c\/p\u003e\n\u003ch4 style=\"color: #334155;\"\u003eWhat is the wireless range of this thermostat?\u003c\/h4\u003e\n\u003cp\u003eThe stated residential RF range is approximately 30 metres. Actual range may vary depending on building construction and signal conditions.\u003c\/p\u003e\n\u003cdiv style=\"background: #f1f5f9; border-radius: 8px; padding: 18px; margin-top: 24px;\"\u003e\n\u003ch3 style=\"color: #1e3a5f; margin-top: 0;\"\u003eOrder Honeywell Home DT4R Black Spare Thermostat from GetPlumb\u003c\/h3\u003e\n\u003cp\u003eChoose the \u003cstrong\u003eHoneywell Home DT4R Black Wireless Room Thermostat Spare DTS42BRFST22\u003c\/strong\u003e for a compatible existing wireless heating control system. Check receiver compatibility before ordering and remember that this listing includes the thermostat head only.\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 0;\"\u003e\u003cstrong style=\"color: #d97706;\"\u003eOrder Now from GetPlumb\u003c\/strong\u003e for your heating control requirements.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":53898823762256,"sku":"DTS42BRFST22","price":66.31,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0858\/5268\/4624\/files\/honeywell-home-dt4r-black-room-thermostat-spare-dts42brfst22-wireless-9279383.jpg?v=1793435287","url":"https:\/\/getplumb.co.uk\/products\/honeywell-home-dt4r-black-room-thermostat-spare-dts42brfst22-wireless","provider":"Getplumb","version":"1.0","type":"link"}