{"product_id":"cdvalvecdvcd3975-cdv-cd3975-superheat-thermometer","title":"CDVALVECDVCD3975 CDV-CD3975 Superheat Thermometer","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CDVALVECDVCD3975 C\u0026amp;DV-CD3975 is a replacement superheat thermometer designed for use in refrigeration and air conditioning service work. Superheat thermometers are used by HVAC technicians to measure suction-line temperature as part of superheat calculations, which are critical for verifying proper refrigerant charge and system performance. This unit serves as a direct replacement for the CD3970 thermometer. Installation and use are performed by licensed HVAC technicians during routine service, commissioning, or refrigerant charging procedures.\u003c\/p\u003e\n\u003cp\u003eThis thermometer is suited for residential and light commercial HVAC applications where suction-line superheat measurement is required. It is most commonly used during refrigerant charging, system diagnostics, and performance verification tasks. As a replacement for the CD3970, it is intended to restore original measurement function to the associated service tool or kit it was originally supplied with.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect replacement for the CD3970 superheat thermometer\u003c\/li\u003e\n  \u003cli\u003eDesigned for suction-line superheat measurement in HVAC service applications\u003c\/li\u003e\n  \u003cli\u003eSupports accurate refrigerant charge verification procedures\u003c\/li\u003e\n  \u003cli\u003eCompact thermometer form factor suited for field service use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eSpecified as a replacement thermometer for the CD3970. No additional compatible models or system families are identified in available product data.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis thermometer is installed and used by licensed HVAC technicians. Before performing any refrigerant system service, follow applicable EPA Section 608 regulations and local codes. Ensure the system is in a stable operating state before taking suction-line temperature readings. Handle thermometer probes and sensing elements with care to avoid damage that could affect measurement accuracy.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProduct Type\u003c\/strong\u003e: Thermometer\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: CDVALVECDVCD3975\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: C\u0026amp;DV-CD3975\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"C\u0026D VALVE","offers":[{"title":"Default Title","offer_id":51525229510962,"sku":"C\u0026DV-CD3975","price":80.43,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/da8c24df791971a8dfdf239364162269.jpg?v=1785467909","url":"https:\/\/voomisupply.com\/products\/cdvalvecdvcd3975-cdv-cd3975-superheat-thermometer","provider":"Voomi Supply","version":"1.0","type":"link"}