Best Digital Manifold Gauges HVAC With Micron in 2025
Updated on May 2025
#1
Recommended
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- Innovative design of the SMAN manifold
- Includes a four-valve configuration with a micron gauge
- Features a digital display for easy readings
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- Innovative design of the SMAN manifold
- Includes a four-valve configuration with a micron gauge
- Features a digital display for easy readings
#2
Value for Money
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- Precise measurements for temperature, vacuum, refrigerant weight, and current in AC systems and heat pumps.
- Long-lasting battery life of up to 360 hours with rechargeable USB-C batteries for efficiency in both long-term and short-term measurements.
- Intelligent error detection via the app ensures accurate data, identifying anomalies even at low pressure values.
- Durable design with IP54 protection class provides reliability in challenging conditions.
- Wireless connectivity allows for real-time data viewing on the testo Smart App and easy integration with other testo gauges via Bluetooth.
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- Precise measurements for temperature, vacuum, refrigerant weight, and current in AC systems and heat pumps.
- Long-lasting battery life of up to 360 hours with rechargeable USB-C batteries for efficiency in both long-term and short-term measurements.
- Intelligent error detection via the app ensures accurate data, identifying anomalies even at low pressure values.
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#3
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- The vacuum gauge accurately measures temperature, pressure, and vacuum levels on refrigerant systems and heat pumps, replacing the need for multiple gauges.
- It features an intuitive menu and a 4-way valve block for easy pressure measurement in hard-to-reach areas.
- The micron gauge effectively measures temperatures from -58° to 302 °F and pressures from -15 to 870 psi; it can measure vacuums up to 20,000 microns.
- High precision is guaranteed with temperature accuracy of ±0.9 °F, pressure accuracy of ±0.5% full-scale, and vacuum accuracy within ±(10 microns + 10% of mv) in the range of 100 to 1000 microns.
- A smart app allows for remote operation and documentation, enabling users to perform service tasks and share results directly from their mobile devices.
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- The vacuum gauge accurately measures temperature, pressure, and vacuum levels on refrigerant systems and heat pumps, replacing the need for multiple gauges.
- It features an intuitive menu and a 4-way valve block for easy pressure measurement in hard-to-reach areas.
- The micron gauge effectively measures temperatures from -58° to 302 °F and pressures from -15 to 870 psi; it can measure vacuums up to 20,000 microns.
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#4
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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
#5
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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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#6
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- Robust construction: The testo 550i is built with an IP54-rated housing suitable for harsh working conditions, ensuring reliability for HVACR professionals.
- Compact and efficient: Designed with a 2-way valve block and automated probe connection, this HVAC meter simplifies pressure measurements in tight spaces.
- Accurate vacuum measurement: The testo 552i delivers precise deep vacuum readings with single-digit resolution and provides alerts when the evacuation goal is achieved.
- Easy temperature monitoring: The 115i wireless pipe clamp thermometer measures pipe temperatures swiftly, accommodating pipes up to 1.5” in diameter.
- User-friendly app: The accompanying mobile app enables straightforward documentation, remote operation of service tasks, and direct result sharing from the job site.
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- Robust construction: The testo 550i is built with an IP54-rated housing suitable for harsh working conditions, ensuring reliability for HVACR professionals.
- Compact and efficient: Designed with a 2-way valve block and automated probe connection, this HVAC meter simplifies pressure measurements in tight spaces.
- Accurate vacuum measurement: The testo 552i delivers precise deep vacuum readings with single-digit resolution and provides alerts when the evacuation goal is achieved.
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#7
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- All measurements are easily visible
- Supports 45 refrigerants with convenient updates through mini USB
- Micron vacuum gauge includes alarms, stopwatch, and rate indicator
- Simultaneous monitoring of superheat and subcooling
- Automatically adjusts to target superheat
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- All measurements are easily visible
- Supports 45 refrigerants with convenient updates through mini USB
- Micron vacuum gauge includes alarms, stopwatch, and rate indicator
- Simultaneous monitoring of superheat and subcooling
- Automatically adjusts to target superheat
#8
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- 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.
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- 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.
#9
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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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#10
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- Switch between refrigerant pressure, vacuum percentage, and leak detection modes for HVAC diagnostics.
- Compatible with over 90 refrigerants, including R134A, R22, and R410A, ensuring accurate readings.
- Real-time pressure detection provides saturation temperature values for subcooling and superheating calculations.
- NIST-compliant temperature gauge data offers industry-standard accuracy with minimal temperature and pressure measurement errors.
- Intuitive design features unit conversion and backlight for easy operation in various environments.
- Automatic power-off function enhances battery life for prolonged usage.
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- Switch between refrigerant pressure, vacuum percentage, and leak detection modes for HVAC diagnostics.
- Compatible with over 90 refrigerants, including R134A, R22, and R410A, ensuring accurate readings.
- Real-time pressure detection provides saturation temperature values for subcooling and superheating calculations.
- NIST-compliant temperature gauge data offers industry-standard accuracy with minimal temperature and pressure measurement errors.
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