{"product_id":"jb-industries-m2-924-compound-gauge-r-22-r-404a-r-410a","title":"Jb Industries m2-924 Compound Gauge R-22 R-404A R-410A","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe JB INDUSTRIES m2-924 is a low-side compound gauge designed for HVAC refrigeration service work requiring precise pressure readings. Built to Class One accuracy at 1 percent, it measures both positive pressure and vacuum on the low side of a refrigerant circuit. The dial face measures 3-1\/8 inches (80 mm) in diameter and features a glow-in-the-dark design that stores ambient light energy to remain readable in dark or poorly lit service environments. This gauge is a standard instrument for licensed HVAC technicians performing system diagnostics, evacuation verification, and refrigerant charge work.\u003c\/p\u003e\u003cp\u003eThe m2-924 is rated for use with R-22, R-404A, and R-410A refrigerants, making it a versatile tool for service fleets handling both legacy and current residential and light commercial refrigeration and air conditioning systems. Its blue color coding identifies it as a low-side compound gauge, consistent with standard manifold gauge set conventions. The large 80 mm dial improves readability during service calls, including in attics, mechanical rooms, and other low-light conditions where the glow-in-the-dark feature provides a practical advantage.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eClass One accuracy rated at 1 percent for reliable low-side pressure diagnostics\u003c\/li\u003e\n\u003cli\u003e3-1\/8 inch (80 mm) diameter dial for improved readability in tight or dark spaces\u003c\/li\u003e\n\u003cli\u003eGlow-in-the-dark dial stores light energy and emits it in dimly lit or dark environments\u003c\/li\u003e\n\u003cli\u003eCompatible with R-22, R-404A, and R-410A refrigerants\u003c\/li\u003e\n\u003cli\u003eBlue dial color coding identifies low-side compound gauge at a glance\u003c\/li\u003e\n\u003cli\u003eCompound gauge reads both positive pressure and vacuum\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eRated for use with R-22, R-404A, and R-410A refrigerants. Designed as a low-side compound gauge for use in manifold gauge set assemblies servicing residential and light commercial HVAC and refrigeration systems using these refrigerants.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis gauge is a sensitive pressure instrument and must not be subjected to pressures beyond its scale range. Installation and refrigerant service work should be performed by EPA Section 608 certified technicians using appropriate manifold gauge set equipment. Always recover refrigerant and relieve system pressure before connecting or disconnecting gauge lines. Handle the gauge carefully to avoid impact damage that can affect calibration accuracy.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDial Diameter\u003c\/strong\u003e: 3-1\/8 inches (80 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccuracy Class\u003c\/strong\u003e: Class One, 1 percent\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGauge Type\u003c\/strong\u003e: Compound (low side)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRefrigerant Compatibility\u003c\/strong\u003e: R-22, R-404A, R-410A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDial Color\u003c\/strong\u003e: Blue (glow-in-the-dark)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: JB INDUSTRIES\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: m2-924\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"JB INDUSTRIES","offers":[{"title":"Default Title","offer_id":51138370568498,"sku":"M2-924","price":58.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/305533124.jpg?v=1778254508","url":"https:\/\/voomisupply.com\/products\/jb-industries-m2-924-compound-gauge-r-22-r-404a-r-410a","provider":"Voomi Supply","version":"1.0","type":"link"}