{"product_id":"a421-series-electronic-temperature-controller-40-t","title":"A421 Series Electronic Temperature Controller -40 to 212 Degrees Fahrenheit, SPDT Single-Pole Double-Throw Relay, Direct Replacement for A419Abc-1C, Single-Stage HVAC Thermostat Controller, Pro-Grade Durable Performance","description":"\u003cdiv\u003eA421 Temperature Controller for -40 to 212 F, single unit\u003cbr\u003e\n✔️ Direct replacement for A419Abc-1C with SPDT single-stage control \u003cp\u003eThe A421 Series Electronic Temperature Controller is a single-stage HVAC device designed to regulate heating and cooling by switching a relay on and off. It serves as a direct replacement for older models and is built for reliable, pro-grade performance in commercial or residential climate control applications.\u003c\/p\u003e \u003cp\u003e✅ Single-stage controls\u003cbr\u003e✅ SPDT output relay\u003cbr\u003e✅ Temperature range -40 to 212°F (-40 to 100°C)\u003cbr\u003e✅ Direct replacement for A419Abc-1C\u003cbr\u003e✅ Bright backlit LCD with adjustable brightness\u003cbr\u003e✅ Three-button touchpad interface\u003cbr\u003e✅ LED indicates relay status\u003cbr\u003e✅ Anti-short cycle delay adjustable\u003cbr\u003e✅ Temperature setback and sensor offset\u003cbr\u003e✅ Made in United States; Johnson Controls\u003cbr\u003e\u003c\/p\u003e \u003cp\u003e💡 What is an electronic temperature controller used for in HVAC systems? These handy devices help maintain comfort and efficiency.\u003cbr\u003e\n- Controls heating and cooling by energizing relays at setpoints.\u003cbr\u003e\n- Handy for precise climate control in homes and small offices.\u003cbr\u003e\n- Improves energy efficiency by reducing overshoot and cycling.\u003cbr\u003e\u003c\/p\u003e✝️\u003c\/div\u003e","brand":"Amazon","offers":[{"title":"Default Title","offer_id":48755560448235,"sku":"VXB01IWJO25E","price":205.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/51MLSNZqh8L.jpg?v=1780906586","url":"https:\/\/vxb.com\/products\/a421-series-electronic-temperature-controller-40-t","provider":"VXB Bearings","version":"1.0","type":"link"}