{"product_id":"dwyer-instruments-1820-0-differential-pressure-switch","title":"Dwyer Instruments 1820-0 Differential Pressure Switch","description":"\u003cdiv\u003e\u003cp\u003eThe Dwyer Instruments 1820-0 differential pressure switch is a compact, enclosure-protected device designed to monitor low differential pressure. Model 1820-0 is described as a low differential pressure switch with enclosure, providing a protected sensing chamber and secure electrical connections for reliable operation in constrained spaces. As a Dwyer Instruments product, the unit measures the pressure difference between two ports and outputs a switch signal when the differential pressure reaches its preset threshold, enabling simple control, signaling, or interlock logic. The built-in enclosure shields the internal components and supports installation in challenging environments where a compact form factor and protection matter. The 1820-0 designation identifies this specific configuration within Dwyer’s range of differential pressure switches, offering a durable, straightforward option for monitoring small pressure differences with a protected enclosure.\u003c\/p\u003e\u003c\/div\u003e","brand":"Dwyer","offers":[{"title":"New","offer_id":51681588904238,"sku":null,"price":36.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_f5c9c65a-77ce-4b12-86cb-2870c25bee50.jpg?v=1769635246","url":"https:\/\/plgautomation.com\/products\/dwyer-instruments-1820-0-differential-pressure-switch","provider":"PLG Automation ","version":"1.0","type":"link"}