{"product_id":"honeywell-thm5421r2-equipment-interface-module-control-board","title":"Honeywell THM5421R2 Equipment Interface Module Control Board","description":"\u003cp\u003e\u003cstrong\u003e\u003cem\u003eThis product may contain shelf wear, have minor cosmetic imperfections, or have been tested. All our certified pre-owned products are backed by our return policy. We offer free shipping on all items. Please contact us for discounts or if you have any questions. We look forward to doing business with you!\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e- Controls up to 4 stages of heat and 2 stages of cool in heat pump systems\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e- Controls up to 3 stages of heat and 2 stages of cool in conventional systems- Three sets of Universal IAQ contacts to control humidification, dehumidification, and ventilation- Four sensor inputs for wired sensors or dry contact devices- Compatible with Prestige IAQ Thermostats and VisionPRO Thermostats with RedLINK technology- Operating temperature range: -30° to 150°F (-34 to 66°C)- Heat setpoint range: 40° to 90°F (4.5° to 32°C)- Cool setpoint range: 50° to 99°F (10° to 37°C)- Supports gas, oil, electric, heat pump, forced warm air, hot water, steam, and gravity systems- Dimensions: 9 5\/16 in. High × 4 13\/16 in. Wide × 1 5\/8 in. Deep\u003c\/p\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":43672930189421,"sku":"12869","price":225.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0637\/2419\/1853\/files\/s-l800_7c115b12-c869-4c67-bf35-61f544cd643b.jpg?v=1763343539","url":"https:\/\/willardshvacsupply.com\/products\/honeywell-thm5421r2-equipment-interface-module-control-board","provider":"Willard's HVAC Supply","version":"1.0","type":"link"}