Best 454b Digital Refrigerant Gauges HVAC in 2025
Updated on May 2025
#1
Recommended
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- 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
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- 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
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- 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.
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- 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.
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#3
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- Simultaneous dual pressure and temperature measurements, including superheat and subcooling calculations.
- Equipped with a 32-bit digital processor for high accuracy and reliable performance.
- Features an LCD with backlight, multi-unit pressure conversion, and temperature settings in Celsius and Fahrenheit.
- Upgraded two-color temperature clamp for easy identification of high/low pressure temperatures.
- Durable 3000 psi air hose designed to be tough, scratch-resistant, and flexible.
- Includes a database of 93 refrigerants for easy selection and monitoring of charging status.
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- Simultaneous dual pressure and temperature measurements, including superheat and subcooling calculations.
- Equipped with a 32-bit digital processor for high accuracy and reliable performance.
- Features an LCD with backlight, multi-unit pressure conversion, and temperature settings in Celsius and Fahrenheit.
- Upgraded two-color temperature clamp for easy identification of high/low pressure temperatures.
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#4
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- Color-coded scales for identification
- Sliding double 'O' ring pistons to reduce wear
- Durable nylon seats for long life
- Forged brass body provides durability
- Full porting for maximized capacity and flow
- Hoses rated for high pressure
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- Color-coded scales for identification
- Sliding double 'O' ring pistons to reduce wear
- Durable nylon seats for long life
- Forged brass body provides durability
- Full porting for maximized capacity and flow
- Hoses rated for high pressure
#5
26% Off
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- 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).
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- 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.
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#6
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- 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.
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- 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.
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#7
Yellow Jacket 42035 2-Valve Series 41 A2L Manifold, (psi °F) R32/454B/410A, 3-1/8" Gauges (No Hoses)
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- Color-coded scales for easy identification
- Durable sliding double 'O' ring pistons minimize wear
- Long-lasting nylon seats enhance performance
- Forged brass body ensures long-term durability
- Full port design maximizes capacity and flow efficiency
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- Color-coded scales for easy identification
- Durable sliding double 'O' ring pistons minimize wear
- Long-lasting nylon seats enhance performance
- Forged brass body ensures long-term durability
- Full port design maximizes capacity and flow efficiency
#8
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- Cost-effective device that balances functionality and pricing for HVAC applications.
- Precise monitoring of pressure and vacuum leakage tests with temperature compensation capability.
- Compact design with low power consumption and a battery life of up to 200 hours, featuring a replaceable battery.
- Compatible with over 140 refrigerants, offering automatic calculations for overheating and supercooling, multiple pressure and temperature unit options, and an auto-off feature.
- Large display with user-friendly features, including two temperature clamps and a hanging hook, with 24/7 US technician support available.
- Integrated app for iOS and Android to manage various Elitech tools, enhancing efficiency and functionality.
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- Cost-effective device that balances functionality and pricing for HVAC applications.
- Precise monitoring of pressure and vacuum leakage tests with temperature compensation capability.
- Compact design with low power consumption and a battery life of up to 200 hours, featuring a replaceable battery.
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#9
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- Connects to high/low sides, refrigerant tank, recovery unit, and vacuum pump for diagnostics and charging
- 3/8″ vacuum port that reduces evacuation time by up to 33%
- Front access for easy field recalibration
- Reliable double O-ring piston designed for longevity
- 100 mesh filter integrated on all flare fittings
- Sight glass for monitoring refrigerant movement and condition during charging
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- Connects to high/low sides, refrigerant tank, recovery unit, and vacuum pump for diagnostics and charging
- 3/8″ vacuum port that reduces evacuation time by up to 33%
- Front access for easy field recalibration
- Reliable double O-ring piston designed for longevity
- 100 mesh filter integrated on all flare fittings
- Sight glass for monitoring refrigerant movement and condition during charging
#10
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- Compatible with various refrigeration equipment including automotive and household AC systems, featuring a 3.5" LCD display for easy data reading.
- Equipped with upgraded V-shaped valve technology for precise refrigerant control, requiring only a 90° turn to operate.
- Capable of testing evaporation/condensation pressure, temperature, and detecting refrigerant leaks by calculating pressure differences.
- Automated measurements for superheat and subcooling when connected to AC pipes; can also connect to vacuum pumps for enhanced refrigerant purity.
- Supports multiple measurement units with a 32-bit digital processing unit for stable data, complemented by an observation window and a non-slip silicone design.
- Includes a 3-year warranty for customer peace of mind and support for any usage inquiries.
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- Compatible with various refrigeration equipment including automotive and household AC systems, featuring a 3.5" LCD display for easy data reading.
- Equipped with upgraded V-shaped valve technology for precise refrigerant control, requiring only a 90° turn to operate.
- Capable of testing evaporation/condensation pressure, temperature, and detecting refrigerant leaks by calculating pressure differences.
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