Best 454b Digital Refrigerant Gauges HVAC in 2025

Updated on July 2025
#1
Free Shipping
  • Digital refrigerant manifold and micron gauge for HVAC and refrigeration diagnostics
  • Accurate measurement of low and high pressure, superheat, and subcooling
  • Includes protected thermocouple jacks for measuring pipe and outdoor temperatures
  • Four valve manifold with a vacuum gauge, compatible with Job Link Psychrometer probes
  • Features data logging and temperature compensated system tightness testing
Read More
  • Digital refrigerant manifold and micron gauge for HVAC and refrigeration diagnostics
  • Accurate measurement of low and high pressure, superheat, and subcooling
  • Includes protected thermocouple jacks for measuring pipe and outdoor temperatures
  • Four valve manifold with a vacuum gauge, compatible with Job Link Psychrometer probes
  • Features data logging and temperature compensated system tightness testing
#2
Value for Money
Free Shipping
  • The manifold gauge set provides precise temperature and pressure readings for air conditioning systems, refrigeration, and heat pumps.
  • It has a wide temperature range of -58° to 302 °F / -50 to +150 °C and a pressure range of -15 to 870 psi / -1 to 60 bar.
  • Temperature accuracy is ±0.9 °F / ±0.5 °C, and pressure measurement accuracy is ±0.5 % of the full-scale value.
  • Includes 2 wired temperature probes for accurate measurements of temperature, pressure, and vacuum, facilitating easy system analysis.
  • Supports most common refrigerant types and A3 refrigerants, with automatic calculations of superheat and subcooling through the testo smart app.
Read More
  • The manifold gauge set provides precise temperature and pressure readings for air conditioning systems, refrigeration, and heat pumps.
  • It has a wide temperature range of -58° to 302 °F / -50 to +150 °C and a pressure range of -15 to 870 psi / -1 to 60 bar.
  • Temperature accuracy is ±0.9 °F / ±0.5 °C, and pressure measurement accuracy is ±0.5 % of the full-scale value.
  • Includes 2 wired temperature probes for accurate measurements of temperature, pressure, and vacuum, facilitating easy system analysis.
  • Supports most common refrigerant types and A3 refrigerants, with automatic calculations of superheat and subcooling through the testo smart app.
Read More
#3
Free Shipping
  • Affordable and functional design for HVAC applications.
  • Accurate monitoring of pressure and vacuum tests with temperature compensation.
  • Compact and portable with a 200-hour battery life and replaceable battery.
  • Supports 88 refrigerants, automatic calculations, multiple pressure and temperature units.
  • User-friendly with a large display, included temperature clamps, and support from US technicians.
Read More
  • Affordable and functional design for HVAC applications.
  • Accurate monitoring of pressure and vacuum tests with temperature compensation.
  • Compact and portable with a 200-hour battery life and replaceable battery.
  • Supports 88 refrigerants, automatic calculations, multiple pressure and temperature units.
  • User-friendly with a large display, included temperature clamps, and support from US technicians.
#4
Free Shipping
  • Pro manifold gauge designed for refrigerants R-454B, R-32, R-410A, and R-22
  • Compatible with A2L refrigerant types
  • Analog display for easy reading of pressure levels
  • Constructed for professional use in HVAC applications
  • Includes necessary fittings for various refrigerant types
  • Durable design for longevity and reliability in the field
Read More
  • Pro manifold gauge designed for refrigerants R-454B, R-32, R-410A, and R-22
  • Compatible with A2L refrigerant types
  • Analog display for easy reading of pressure levels
  • Constructed for professional use in HVAC applications
  • Includes necessary fittings for various refrigerant types
  • Durable design for longevity and reliability in the field
#5
Free Shipping
  • Integrated Elitech Tools App for iOS and Android to manage various HVAC tools in one location.
  • Features automatic calculations for superheat/subcool, data recording, and options for setting pressure alarms with data export capabilities in Excel or PDF.
  • Supports over 140 refrigerants and 7 measurement units including psi, bar, and kPa for versatile application.
  • Constructed with ABS and PPT materials, offering an IP65 waterproof rating, along with a portable carrying case and two temperature clamps included.
  • Suitable for real-time measurement of temperature and pressure in refrigeration systems, aiding in the installation and maintenance of HVAC equipment.
Read More
  • Integrated Elitech Tools App for iOS and Android to manage various HVAC tools in one location.
  • Features automatic calculations for superheat/subcool, data recording, and options for setting pressure alarms with data export capabilities in Excel or PDF.
  • Supports over 140 refrigerants and 7 measurement units including psi, bar, and kPa for versatile application.
  • Constructed with ABS and PPT materials, offering an IP65 waterproof rating, along with a portable carrying case and two temperature clamps included.
  • Suitable for real-time measurement of temperature and pressure in refrigeration systems, aiding in the installation and maintenance of HVAC equipment.
Read More
#6
Free Shipping
  • Durable design features an impact-resistant rubber cover and aluminum body for enhanced protection and longevity.
  • Class 1.0 accuracy for precise measurements, assisting HVAC technicians in delivering efficient service.
  • Includes a foldable hook for easy transport, storage, and convenience during use.
  • Compatible with four refrigerant types (R-454B, R-32, R-410A, R-22) and features a large 3-1/8 inch gauge face with a built-in sight glass for clear readings.
  • Comes with a 1-year warranty, promoting durability and encouraging efficient workflow.
Read More
  • Durable design features an impact-resistant rubber cover and aluminum body for enhanced protection and longevity.
  • Class 1.0 accuracy for precise measurements, assisting HVAC technicians in delivering efficient service.
  • Includes a foldable hook for easy transport, storage, and convenience during use.
  • Compatible with four refrigerant types (R-454B, R-32, R-410A, R-22) and features a large 3-1/8 inch gauge face with a built-in sight glass for clear readings.
  • Comes with a 1-year warranty, promoting durability and encouraging efficient workflow.
Read More
#7
10% Off
Free Shipping
  • Intelligent electronic refrigerant instrument for installation, testing, and maintenance of refrigeration equipment like air conditioners and cold storage.
  • Simultaneous measurement of double pressure and dual temperature, with automatic unit conversion between pressure and temperature scales, including Celsius and Fahrenheit.
  • Built-in database of 89 refrigerants for pressure-evaporation temperature calculations, plus features for vacuum measurement and leak testing.
  • Large LCD display with backlight for easy reading, durable long-life valve switches, and a standard 1/4-inch interface for versatility.
  • Constructed from high-strength engineering plastic and silicone for comfort, featuring a 32-bit digital processing unit for precision and stability, backed by a 30-day money-back guarantee and a 24-month warranty.
Read More
  • Intelligent electronic refrigerant instrument for installation, testing, and maintenance of refrigeration equipment like air conditioners and cold storage.
  • Simultaneous measurement of double pressure and dual temperature, with automatic unit conversion between pressure and temperature scales, including Celsius and Fahrenheit.
  • Built-in database of 89 refrigerants for pressure-evaporation temperature calculations, plus features for vacuum measurement and leak testing.
  • Large LCD display with backlight for easy reading, durable long-life valve switches, and a standard 1/4-inch interface for versatility.
  • Constructed from high-strength engineering plastic and silicone for comfort, featuring a 32-bit digital processing unit for precision and stability, backed by a 30-day money-back guarantee and a 24-month warranty.
Read More
#8
Free Shipping
  • Includes a complete gauge set for air conditioner charging work, featuring a 4-way diagnostic gauge, 5 ft colored hoses, adjustable R134A and R410A adapters, a calibration screwdriver, and a valve core remover.
  • Compatible with multiple refrigerants (R134A, R22, R32, R104A) for testing and servicing air conditioning systems, enabling AC charging, evacuation, diagnostic checks, and recovery tasks.
  • Features large, colored dials with clear Fahrenheit readings, pressure ratings of 800 psi (red) and 550 psi (blue), including a sight glass for monitoring refrigerant flow and a connector for mini split systems.
  • Constructed from durable brass and aluminum, ensuring strong sealing and resistance to heavy use and accidental drops, while also incorporating anti-leakage features.
  • Equipped with extra long 5 ft hoses designed for convenience, featuring thickened bodies and precise valve core depressors with a 45-degree bend for improved accessibility.
Read More
  • Includes a complete gauge set for air conditioner charging work, featuring a 4-way diagnostic gauge, 5 ft colored hoses, adjustable R134A and R410A adapters, a calibration screwdriver, and a valve core remover.
  • Compatible with multiple refrigerants (R134A, R22, R32, R104A) for testing and servicing air conditioning systems, enabling AC charging, evacuation, diagnostic checks, and recovery tasks.
  • Features large, colored dials with clear Fahrenheit readings, pressure ratings of 800 psi (red) and 550 psi (blue), including a sight glass for monitoring refrigerant flow and a connector for mini split systems.
  • Constructed from durable brass and aluminum, ensuring strong sealing and resistance to heavy use and accidental drops, while also incorporating anti-leakage features.
  • Equipped with extra long 5 ft hoses designed for convenience, featuring thickened bodies and precise valve core depressors with a 45-degree bend for improved accessibility.
Read More
#9
28% Off
Free Shipping
  • Rogvoc manifold gauges perform refrigerant filling, dual pressure testing, air tightness testing, vacuum degree measurement, and temperature testing. They come with built-in data for 92 refrigerants, allowing users to switch or fill various refrigerants as needed.
  • The digital manifold gauge facilitates pressure and temperature testing during refrigerant charging. It automatically tests refrigerant condensation and evaporation pressures, vacuum pressure values, and leak duration, allowing for effective monitoring of system integrity.
  • Pressure test range is 0-6000 Kpa with a resolution of 1 Kpa and accuracy of ±0.5% (FS). Maximum overload pressure is 10000 Kpa. Vacuum test range is -101 Kpa to 0 Kpa. Hoses have a maximum working pressure of 600 PSI and feature a new knob handle design for easier installation and frostbite protection.
  • The digital gauges feature a visual window for monitoring refrigerant filling, multiple interchangeable pressure and temperature units, a TFT LCD display for improved readability in low light, and a back hook for convenient hands-free testing.
  • The product includes 24/7 customer support, ensuring assistance within 24 hours for any inquiries. Package contents: digital manifold gauge, 3 colored hoses (5 FT each), 2 thermometer clamps, replacement valve core, and toolbox (battery not included).
Read More
  • Rogvoc manifold gauges perform refrigerant filling, dual pressure testing, air tightness testing, vacuum degree measurement, and temperature testing. They come with built-in data for 92 refrigerants, allowing users to switch or fill various refrigerants as needed.
  • The digital manifold gauge facilitates pressure and temperature testing during refrigerant charging. It automatically tests refrigerant condensation and evaporation pressures, vacuum pressure values, and leak duration, allowing for effective monitoring of system integrity.
  • Pressure test range is 0-6000 Kpa with a resolution of 1 Kpa and accuracy of ±0.5% (FS). Maximum overload pressure is 10000 Kpa. Vacuum test range is -101 Kpa to 0 Kpa. Hoses have a maximum working pressure of 600 PSI and feature a new knob handle design for easier installation and frostbite protection.
  • The digital gauges feature a visual window for monitoring refrigerant filling, multiple interchangeable pressure and temperature units, a TFT LCD display for improved readability in low light, and a back hook for convenient hands-free testing.
  • The product includes 24/7 customer support, ensuring assistance within 24 hours for any inquiries. Package contents: digital manifold gauge, 3 colored hoses (5 FT each), 2 thermometer clamps, replacement valve core, and toolbox (battery not included).
Read More
#10
Free Shipping
  • Professional dual digital display for real-time vacuum and pressure readings compatible with various refrigerants like R22, R134A, R410A, and more.
  • Integrated refrigerant leak detection mode and dual pressure testing enhance diagnostic accuracy for HVAC and automotive applications.
  • Includes two temperature clamp probes and three reinforced hoses for easy connection to HVAC units and refrigeration systems, supporting both analog and digital setups.
  • Larger color LCD screen provides instant visibility of pressure and temperature data, featuring a user-friendly interface with auto shutoff functionality.
  • Comprehensive kit includes dual digital gauge, heavy-duty hoses, temperature clamps, storage case, batteries, and manual.
Read More
  • Professional dual digital display for real-time vacuum and pressure readings compatible with various refrigerants like R22, R134A, R410A, and more.
  • Integrated refrigerant leak detection mode and dual pressure testing enhance diagnostic accuracy for HVAC and automotive applications.
  • Includes two temperature clamp probes and three reinforced hoses for easy connection to HVAC units and refrigeration systems, supporting both analog and digital setups.
  • Larger color LCD screen provides instant visibility of pressure and temperature data, featuring a user-friendly interface with auto shutoff functionality.
  • Comprehensive kit includes dual digital gauge, heavy-duty hoses, temperature clamps, storage case, batteries, and manual.
Read More
Ac Gauges For House R22 R134 R410a See All
Ac Gauges Digital Hvac Manifold Gauge Set Fieldpiece See All
Automotive Ac Manifold Gauge Set R1234yf See All