{"product_id":"barber-colman-maq304011-temperature-controller","title":"Barber-Colman MAQ304011 Temperature Controller","description":"\u003cdiv\u003e\u003cp\u003eThe Barber-Colman MAQ3-04011 100-3-00 Temperature Controller (MAQ304011, 100300) is a legacy Barber-Colman MAQ-series digital temperature controller designed for industrial process temperature regulation. As part of the MAQ family, it supports multiple input types and configurable outputs typical of Barber-Colman controllers of this era, enabling use with thermocouples, RTDs, mA signals, and DC inputs. The unit offers a range of outputs including relay, 4-20 mA, isolated DC, logic, and Limitrol options, making it adaptable to different control architectures and safety requirements. Refurbished availability is shown in active listings for MAQ3-04011 100-3-00, confirming continued use in legacy installations and spare-parts sourcing. MAQ304011 and related part numbers (100-3-00 and 100300) correspond to the same controller model, ensuring compatibility with legacy Barber-Colman equipment that requires MAQ3-04011. \u003c\/p\u003e\u003c\/div\u003e","brand":"BARBER-COLMAN","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51676666331438,"sku":null,"price":261.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_7205255d-e526-451f-a8c0-0596ad0246d8.jpg?v=1769552132","url":"https:\/\/plgautomation.com\/products\/barber-colman-maq304011-temperature-controller","provider":"PLG Automation ","version":"1.0","type":"link"}