{"product_id":"55102-1400","title":"Mastercool 55102-1400 R744 CO₂ Low Pressure Replacement Gauge 70mm Oil Filled","description":"\u003ch1\u003eMastercool 55102-1400 — R744 CO2 Low Pressure Gauge 70mm Oil Filled\u003c\/h1\u003e\u003cp\u003eProfessional 70mm oil-filled low pressure gauge specifically designed for R744 (CO2) refrigeration systems. Dual scale display shows both psi and MPa measurements for accurate pressure monitoring in transcritical CO2 applications. Oil-filled design dampens needle vibration and protects internal components from harsh operating conditions.\u003c\/p\u003e\u003ch2\u003eKey Features:\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eR744 CO2 Specific\u003c\/strong\u003e – Designed for transcritical CO2 refrigeration systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e70mm Gauge Face\u003c\/strong\u003e – Large, easy-to-read dial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOil-Filled Design\u003c\/strong\u003e – Dampens vibration, protects internals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Scale\u003c\/strong\u003e – psi and MPa measurements\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Pressure\u003c\/strong\u003e – Optimised for LP side monitoring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfessional Grade\u003c\/strong\u003e – Built to Mastercool standards\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Construction\u003c\/strong\u003e – Withstands harsh CO2 system conditions\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications:\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eModel: 55102-1400\u003c\/li\u003e\n\u003cli\u003eType: Low pressure gauge\u003c\/li\u003e\n\u003cli\u003eRefrigerant: R744 (CO2)\u003c\/li\u003e\n\u003cli\u003eGauge Size: 70mm diameter\u003c\/li\u003e\n\u003cli\u003eFill: Oil-filled\u003c\/li\u003e\n\u003cli\u003eScale: psi and MPa\u003c\/li\u003e\n\u003cli\u003eApplication: CO2 refrigeration systems\u003c\/li\u003e\n\u003cli\u003eConnection: 1\/4\" SAE (standard)\u003c\/li\u003e\n\u003cli\u003eSKU: 55102-1400\u003c\/li\u003e\n\u003cli\u003eBarcode: 700376116847\u003c\/li\u003e\n\u003cli\u003eHS Code: 90262080\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eR744 (CO2) Refrigeration:\u003c\/h2\u003e\u003cp\u003eR744 (carbon dioxide) is increasingly used in commercial refrigeration as a natural, environmentally friendly refrigerant. CO2 systems operate at significantly higher pressures than traditional refrigerants, requiring specialised gauges designed to handle transcritical CO2 pressure ranges. This low pressure gauge is specifically calibrated for the LP side of CO2 systems.\u003c\/p\u003e\u003ch2\u003eOil-Filled Gauge Benefits:\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVibration Dampening\u003c\/strong\u003e – Oil fill reduces needle flutter for accurate readings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComponent Protection\u003c\/strong\u003e – Protects internal mechanism from shock and vibration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtended Life\u003c\/strong\u003e – Reduces wear on internal components\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarsh Environment\u003c\/strong\u003e – Withstands demanding commercial refrigeration conditions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConsistent Performance\u003c\/strong\u003e – Maintains accuracy over time\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eApplications:\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCommercial CO2 refrigeration systems\u003c\/li\u003e\n\u003cli\u003eTranscritical CO2 installations\u003c\/li\u003e\n\u003cli\u003eSupermarket refrigeration\u003c\/li\u003e\n\u003cli\u003eCold storage facilities\u003c\/li\u003e\n\u003cli\u003eCO2 cascade systems\u003c\/li\u003e\n\u003cli\u003eNatural refrigerant applications\u003c\/li\u003e\n\u003cli\u003eCO2 system commissioning and service\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eComplete R744 CO2 Gauge Set:\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"\/products\/mastercool-55102-2400-r744-co2-hp-gauge-70mm-oil-filled-psi-mpa\"\u003e55102-2400 — R744 CO2 High Pressure Gauge 70mm\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eR744 CO2 Manifolds:\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/mastercool-55103-a-r744-co2-2-valve-piston-manifold-cl-1-1-4-sae\"\u003e55103-A — R744 CO2 2-Valve Piston Manifold 1\/4\" SAE\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/mastercool-55661-a-r744-co2-2-v-piston-manifold-cl-1-1-4-3-150\"\u003e55661-A — R744 CO2 2-Valve Piston Manifold 3-150\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/mastercool-55102-a-r744-co2-2-valve-piston-manifold-body-only-1-4-sae\"\u003e55102-A — R744 CO2 2-Valve Piston Manifold Body Only\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhy Use CO2-Specific Gauges?\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorrect Pressure Range\u003c\/strong\u003e – Calibrated for high CO2 operating pressures\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccurate Readings\u003c\/strong\u003e – Proper scale divisions for CO2 systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety\u003c\/strong\u003e – Designed to handle transcritical CO2 pressures safely\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfessional Standards\u003c\/strong\u003e – Meet requirements for CO2 refrigeration service\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Units\u003c\/strong\u003e – psi and MPa for international applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation:\u003c\/h2\u003e\u003cp\u003eConnect gauge to low pressure port on CO2 manifold using 1\/4\" SAE connection. Ensure connection is secure and leak-free. The oil-filled design means the gauge should be mounted in an upright position for optimal performance. Avoid over-tightening connections which may damage threads.\u003c\/p\u003e\u003ch2\u003eMaintenance:\u003c\/h2\u003e\u003cp\u003eInspect gauge regularly for damage or leaks. Check that needle returns to zero when not under pressure. If gauge becomes damaged or shows signs of oil leakage, replace immediately. Store in protective case when not in use to prevent damage to gauge face and connection threads.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eProfessional R744 CO2 low pressure gauge\u003c\/strong\u003e with 70mm oil-filled design. Dual psi\/MPa scale for transcritical CO2 refrigeration systems. Built for commercial refrigeration service.\u003c\/p\u003e","brand":"Mastercool","offers":[{"title":"Default Title","offer_id":57164099453305,"sku":"55102-1400","price":70.24,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/0158\/3481\/files\/55102-1400.png?v=1777442793","url":"https:\/\/www.airconspares.com\/products\/55102-1400","provider":"Airconspares.com","version":"1.0","type":"link"}