{"product_id":"industrial-a-5503-pneumatic-temperature-switch","title":"Industrial A-5503 Pneumatic Temperature Switch","description":"\u003cdiv\u003e\u003cp\u003eThe Armstrong A-5503 Pneumatic Temperature Switch is a dedicated pneumatic control device from Armstrong Machine Works, identified by manufacturer part number A-5503 and described in distributor listings as a “PNEUMATIC TEMPERATURE SWITCH FOR STEAM HUMIDIFIERS” for steam humidifier applications. This OEM Armstrong component is listed by IMS Supply with Manufacturer Part Number A-5503 and packaging described as sold individually, and it appears in Radwell catalogs as the A-5503 model, noting its use as a pneumatic temperature switch for steam humidifiers and its status as discontinued by the manufacturer. The unit weighs approximately 0.28 lb, reflecting its compact, field-replaceable design typical of Armstrong humidifier controls. Across multiple catalogs, the A-5503 is consistently associated with steam humidifier systems, confirming its intended role as a replacement control element within Armstrong’s pneumatic humidity-management offerings, even as availability may be limited due to its discontinued status. \u003c\/p\u003e\u003c\/div\u003e","brand":"Armstrong","offers":[{"title":"New","offer_id":51660119376174,"sku":null,"price":44.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_1f1dfd72-d6fd-4eb7-acb5-bbe631ca2b9d.jpg?v=1769533163","url":"https:\/\/plgautomation.com\/products\/industrial-a-5503-pneumatic-temperature-switch","provider":"PLG Automation ","version":"1.0","type":"link"}