{"product_id":"dwyer-3010mr-photohelic-pressure-switch-25-psi-4-inch-dial","title":"Dwyer 3010MR Photohelic Pressure Switch 25 Psi 4 Inch Dial","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe DWYER 3010MR is a Photohelic pressure switch gauge combining a differential pressure gauge with adjustable high and low set-point switches in a single instrument. Rated to 25 psi maximum with 2% accuracy, it mounts to a surface and connects via 1\/8 inch female NPT (FNPT) ports located at the back or side. The 4 inch dial provides clear readout in the field, and the polycarbonate plastic body keeps weight low at 1.625 pounds. Electrical connections are made through included 8 inch cable assemblies. HVAC technicians, industrial maintenance techs, and building automation professionals are the primary installers of this instrument.\u003c\/p\u003e\n\u003cp\u003eThis switch gauge is suited for monitoring differential pressure in HVAC air handling systems, cleanrooms, filter banks, and light industrial process applications. It is typically installed where both visual pressure indication and automatic switch actuation are required at the same point in the system. The 1\/8 inch FNPT connection and surface-mount design make it adaptable to panel installations and duct-mounted sensing configurations. The instrument handles a minimum pressure of -20 inches water column (Hg), making it useful across a range of positive and negative pressure monitoring tasks.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCombines differential pressure gauge and dual set-point switches in one unit\u003c\/li\u003e\n  \u003cli\u003e25 psi maximum pressure rating with 2% full-scale accuracy\u003c\/li\u003e\n  \u003cli\u003e4 inch (101.6 mm) dial face for clear field readout\u003c\/li\u003e\n  \u003cli\u003e1\/8 inch FNPT back and side connections for flexible installation\u003c\/li\u003e\n  \u003cli\u003ePolycarbonate plastic body for corrosion resistance and light weight\u003c\/li\u003e\n  \u003cli\u003eIncludes 8 inch (45 cm) cable assemblies for electrical connections\u003c\/li\u003e\n  \u003cli\u003eCE listed\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a direct OEM-style replacement or new-installation Photohelic pressure switch gauge for HVAC air distribution, filter monitoring, and light industrial differential pressure control applications requiring surface-mount NPT connection.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified HVAC technician or instrumentation technician familiar with pressure measurement systems. De-energize all associated control circuits and relieve system pressure before connecting or disconnecting the instrument. Ensure NPT fittings are properly sealed with thread sealant rated for the application pressure and media. Follow applicable local mechanical and electrical codes when wiring the switch outputs.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Pressure\u003c\/strong\u003e: 25 psi\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAccuracy\u003c\/strong\u003e: 2%\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Pressure\u003c\/strong\u003e: -20 inches water column (Hg)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConnection Type\u003c\/strong\u003e: FNPT (Female)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/8 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConnection Location\u003c\/strong\u003e: Back and Side\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDial Size\u003c\/strong\u003e: 4 inches (101.6 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Width\u003c\/strong\u003e: 2.5 inches (63.5 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMount Type\u003c\/strong\u003e: Surface\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Material\u003c\/strong\u003e: Polycarbonate Plastic\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncludes\u003c\/strong\u003e: 8 inch (45 cm) cable assemblies for electrical connections\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1.625 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: CE\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: DWYER\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 3010MR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DWYER","offers":[{"title":"Default Title","offer_id":51538602000690,"sku":"3010MR","price":907.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/81d2e720ae827cf8166e188a5d572655.jpg?v=1785825290","url":"https:\/\/voomisupply.com\/products\/dwyer-3010mr-photohelic-pressure-switch-25-psi-4-inch-dial","provider":"Voomi Supply","version":"1.0","type":"link"}