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AUTOOL HVAC/R Pressure & Temp Tester Review – Pros & Cons – AUTOOL

The AUTOOL Refrigeration Digital Manifold Gauge Meter is an indispensable tool, a veritable Swiss Army knife for the HVAC/R professional, meticulously engineered to be the heart of any diagnostic and maintenance operation. This all-in-one kit, a master of its domain, flawlessly combines the functions of pressure, vacuum, and temperature testing into a single, cohesive unit. With its vibrant digital display, a window into the system’s soul, technicians can effortlessly monitor real-time data, ensuring unparalleled accuracy and efficiency. This AUTOOL HVAC/R Pressure & Temp Tester, furthermore, comes equipped with a versatile test clip and a durable pipe, providing all the necessary appendages to connect and interact with a vast array of air-conditioning and refrigeration systems, thereby streamlining the diagnostic process and ultimately saving precious time and effort. Its robust construction and user-friendly interface are designed to withstand the rigors of daily use, so that every task, from the simplest pressure check to the most complex system analysis, is executed with absolute confidence.

Beyond its technical prowess, this AUTOOL HVAC/R Pressure & Temp Tester serves as a trusted compass in the intricate labyrinth of HVAC/R systems, guiding technicians through a maze of pressures and temperatures. It acts as a vigilant guardian, constantly providing critical feedback that helps to identify leaks, diagnose faulty components, and optimize system performance. The inclusion of a dedicated vacuum pressure tester, moreover, is like having a microscope for the deepest corners of the system, enabling technicians to achieve the perfect vacuum, which is essential for preventing moisture contamination and ensuring the longevity of the refrigerant. Consequently, the meticulous data it provides allows for a truly holistic approach to maintenance, preventing small issues from escalating into costly repairs. Therefore, this kit is not just a tool; it’s an investment in precision, a commitment to quality, and a testament to the technician’s dedication to their craft, and it will undoubtedly become an irreplaceable asset in their professional toolkit.

Ultimately, the AUTOOL Refrigeration Digital Manifold Gauge Meter transcends the boundaries of a simple instrument; it becomes an extension of the technician’s hands and mind, a silent partner in the pursuit of perfection. The integrated temperature testing capability, facilitated by the accompanying test clip, functions as a sensitive thermometer, revealing the subtle thermal nuances of a system’s operation. Thus, it allows for a comprehensive assessment of thermodynamic cycles, ensuring that both cooling and heating are performing at their peak efficiency. This AUTOOL HVAC/R Pressure & Temp Tester kit, furthermore, stands as a beacon of modern technology, blending cutting-edge digital precision with rugged, practical design, and consequently, it revolutionizes the way HVAC/R professionals approach their work. It simplifies complex processes and illuminates hidden problems, serving not merely as a gauge but as an all-seeing eye, bringing clarity and control to the often-chaotic world of refrigeration and air conditioning. In conclusion, it is a testament to the power of thoughtful engineering, and it is poised to become the new standard for the industry.

FEATURES:
– Digital pressure & temperature display
– Measures both vacuum and pressure
– Includes test clip and pipes
– Tests HVAC and refrigeration systems
– Built-in 82 refrigerant parameters
– Auto power-off feature
– Durable and anti-collision design
– Large, clear LCD screen
– Can be used for multiple purposes
– High-precision pressure sensor

The AUTOOL Digital Manifold Gauge is a versatile tool for HVAC and refrigeration technicians. It features a large, clear LCD screen that displays both pressure and temperature, and it can also measure vacuum. This durable, anti-collision device comes with test clips and pipes and has 82 built-in refrigerant parameters. It’s designed for testing and maintaining air-conditioner and refrigerator systems. To conserve power, it includes an auto power-off feature. The high-precision pressure sensor ensures accurate readings for various applications.

PROS:
– Easy to use
– Decent for the cost
– Temperature sensors are good
– Carrying case is of good quality
– Meter seems well built
– Hoses did not leak
– Works great
– Great value for the money
– Easy to read
– Accurate

CONS:
– Need analog gauges to verify
– No temperature sensor calibration
– Vacuum function lacks microns
– Temperature clamps break easily
– Pressure reading can be way off
– Hose fittings may be stripped
– Not for everyday professional use
– Hoses are cheap

The AUTOOL Digital Manifold Gauge Kit is a solid, budget-friendly option for DIYers and those needing a reliable HVAC tool for occasional use. Its meter is well-built and easy to read, offering accurate pressure and temperature readings, though some users suggest verifying with analog gauges. The kit includes good temperature sensors and non-leaking hoses, all housed in a good quality carrying case. However, it’s important to note the lack of temperature sensor calibration and the vacuum function’s inability to measure in microns. Some parts, like the temperature clamps, are prone to breaking, and the included hoses are considered cheap. Additionally, some users have reported issues with pressure readings being off or stripped hose fittings, making it not suitable for everyday professional use. Read more…

AUTOOL Digital Manifold Gauge Set for Leakage Testing

AUTOOL Digital Manifold Gauge Set for Leakage Testing

The image shows an AUTOOL Digital Manifold Gauge connected to a car’s air conditioning system under the hood. The gauge is performing a pressure leakage test. The display screen of the gauge shows a time of 00:03. It shows an initial pressure reading of 1077 kPa and a second pressure reading of 1076 kPa. The test is designed to determine if there is a refrigerant leak. The gauge’s screen shows a small pressure difference of 1 kPa. This indicates a very small or no leak, as the pressure has barely dropped after three minutes.



Digital Manifold Gauge for HVAC Testing

Digital Manifold Gauge for HVAC Testing

The image shows a digital manifold gauge, the AUTOOL Refrigeration Digital Manifold Gauge. It is being used to test an air-conditioning system. The display shows various readings. The readings include temperature in Celsius, and pressure in kPa. The gauge has connections for hoses. The connections are color-coded red and blue. The device is part of a kit for testing and maintaining air conditioners.


Automotive A/C System Test

Automotive A/C System Test

This image shows a digital manifold gauge being used to test an automotive air conditioning system. The gauge has two sensors, T1 and T2, which measure the temperature of the refrigerant in the high and low-pressure pipelines. The T1 sensor reading is 37.5°C. The T2 sensor reading is 36.2°C. The central display shows the pressure readings in kPa, with 364 kPa for the low-pressure side and 1304 kPa for the high-pressure side. The tool is used to diagnose the A/C system.


AUTOOL Digital Manifold Gauge Set

AUTOOL Digital Manifold Gauge Set

This image shows the AUTOOL digital manifold gauge set. It’s used for HVAC/R systems. The main unit has a large digital display. It shows readings for pressure and temperature. The image also shows the accessories. These include three different colored hoses. There are also two pairs of green clamps. The product packaging is also visible.


Digital Refrigerant Gauge and Observation Window

Digital Refrigerant Gauge and Observation Window

The image shows a digital manifold gauge, the AUTOOL HVAC/R Pressure & Temp Tester. It is designed to test refrigeration and HVAC systems. The gauge displays various readings. The refrigerant type can be set. It shows the pressure and temperature. A viewable window is present. This window lets a technician observe the refrigerant’s filling status. The product is used for automotive air conditioning maintenance.


AUTOOL Digital Refrigeration Manifold Gauge

AUTOOL Digital Refrigeration Manifold Gauge

The image shows the AUTOOL digital refrigeration manifold gauge. The device has a clear digital display. It shows temperature and pressure readings for two sensors, T1 and T2. The display is easy to read. It helps with air conditioning systems. The gauge has blue, yellow, and red hose ports. The controls are clearly labeled.


AUTOOL DM12A Digital Manifold Gauge Set

AUTOOL DM12A Digital Manifold Gauge Set

This image shows the AUTOOL DM12A Digital Manifold Gauge Set, a professional tool used for maintaining and servicing refrigeration and air conditioning systems. The main unit features a large LCD display that shows pressure and temperature readings. It has various buttons for different functions, like selecting refrigerant types and zeroing the readings. Below the screen, there are valves and inlets for connecting refrigerant hoses. The image also includes a side view of the device, highlighting its compact size and clamp-on temperature probe socket.


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AUTOOL Digital Manifold Gauge HVAC, AC Dual Pressure & Temperature Test, 92 Refrigerant Refrigeration Gauge with Vacuum/Leak Test, LCD Backlight Temp Clamps

Image of AUTOOL Digital Manifold Gauge HVAC, AC Dual Pressure & Temperature Test, 92 Refrigerant Refrigeration Gauge with Vacuum/Leak Test, LCD Backlight Temp Clamps

Product Highlights

  • ✅ 【Integrated Refrigeration Testing】This digital manifold gauge features four functions: dual-temperature and dual-pressure measurement, refrigerant charging, vacuum operation, and pressure leak testing. It automatically calculates subcooling and superheat, and records the duration and rate of leaks in real time. As a professional auxiliary instrument for the installation, inspection, and maintenance of refrigeration equipment such as air conditioners and cold storage units, it provides a one-stop solution for various refrigeration maintenance scenarios.
  • ✅ 【High-Precision Digital Measurement】The digital gauge hvac pressure measurement range is 0–6000 kPa, vacuum measurement range is –101 to 0 kPa, and temperature measurement range is –30 to 125°C. Measurement accuracy reaches ±0.5% FS, with a resolution as high as 1 kPa. It features a large backlit LCD screen that supports automatic switching between multiple pressure units (kPa/MPa/bar/PSI/inHg) and one-touch conversion between °C and °F, ensuring clear readings even in low-light environments.
  • ✅ 【Compatible with 92 Refrigerants】It features a built-in database of pressure-evaporation temperature data for 92 refrigerants compliant with U.S. NIST standards, comprehensively covering common refrigerants such as R134A, R1234yf, R744 (CO2), and R290. It automatically matches the corresponding saturated temperature for each refrigerant without the need for manual calculations. This ac manifold gauge meets the refrigerant testing needs of various refrigeration equipment, significantly improving maintenance efficiency.
  • ✅ 【Rugged, Durable, and Portable Design】Made of high-strength engineering plastic and non-slip silicone, the refrigerant gauge is shockproof, wear-resistant and comfortable to hold. Digital hvac gauge features a standard 1/4-inch connection and durable valve switch for excellent versatility. Compact at 170×110×50mm and only 950g, it runs on 4 AA batteries for easy portability in on-site work. The standard hose supports up to 600 PSI, with a max working pressure of 10 MPa and reliable overpressure protection.

AUTOOL Manometer Gas Pressure Tester,Digital Manometer HVAC,10 Units Differential Dual Port Pressure Gauge -100 to 200Kpa,Data Zeroing with Backlight LCD Display

Image of AUTOOL Manometer Gas Pressure Tester,Digital Manometer HVAC,10 Units Differential Dual Port Pressure Gauge -100 to 200Kpa,Data Zeroing with Backlight LCD Display

Product Highlights

  • ✅ 【Measuring Range】-100 to 200 kPa / -14.5 to 29 psi , Accuracy: ±0.3% FS. INCLUDES: PT520 Differential digital manometer, 1m of 1/8-Inch inside diameter silicone tubing, 4 x AAA batteries, 7 Connectors, and instructions
  • ✅ 【10 UNITS MEASURED】Easily toggle between inH2O, mbar, psi, kPa, hPa, inHg, mmHg, kg/cm2, mmH20, and Torr.
  • ✅ 【Data Lock & Record & Zeroing】The Digital Pressure Gauge has data storage function, it can store 29 sets of data in time. The Differential Pressure Meter also has a data lock key to lock the value and interface for easy reading. Press and hold the zero key for 5 seconds for atmospheric pressure calibration.
  • ✅ 【LCD Backlight Display】Large Backlit LCD and Top Illumination provides easy viewing in low light conditions. The manometer will automatically shut off after 10 minutes of no pressure, no operation.

AUTOOL AC Manifold Gauge Set, Incl. 2X Pipe Clamp Thermometer, 1x Digital HVAC Gauge, Set of 3 Hoses – AC Gauge Set, with Evacuation Mode, Refrigerant Mode and Pressure Leak Test

Image of AUTOOL AC Manifold Gauge Set, Incl. 2X Pipe Clamp Thermometer, 1x Digital HVAC Gauge, Set of 3 Hoses – AC Gauge Set, with Evacuation Mode, Refrigerant Mode and Pressure Leak Test

Product Highlights

  • ✅ 【Multi-Unit Display Digital Manifold Gauge】The AUTOOL LM160 ac gauge set delivers accurate pressure and temperature readings with a high-resolution digital display. It supports multiple pressure units (psi, kPa, MPa, bar, kg/cm²) and temperature units (°F / °C), allowing HVAC/R professionals to work seamlessly across different systems and standards. The large backlit screen is easy to read in low-light conditions, and the fast 0.5-second response time helps you work efficiently.
  • ✅ 【Support 95+ Refrigerants】Preloaded with a comprehensive refrigerant library including R22, R134a, R404A, R410A, R1234yf, and over 90 others, the LM160 hvac gauge is ready for a wide range of HVAC applications—from legacy systems to the latest eco-friendly refrigerants. Simply select the refrigerant type, and the gauge automatically calculates superheat and subcooling.
  • ✅ 【Multi-Functional Modes】The LM160 refrigerant gauge offers three dedicated operating modes—Refrigeration, Leak Testing, and Vacuum—each designed to streamline specific diagnostic tasks. Switch between modes with ease using the intuitive interface. Use Refrigeration Mode to monitor system performance with real-time superheat/subcooling values. Switch to Leak Test Mode to track pressure over time and detect system leaks. Vacuum Mode helps you verify system evacuation with live vacuum readings and water evaporation temperature tracking.
  • ✅ 【Durable & Safety Features】Built with rugged materials and a protective casing, the LM160 manifold gauge includes a foldable hook for hands-free operation, rubber-sealed battery compartment, and clear labeling for low/high-pressure ports.Designed for the demands of daily field use, this gauge withstands tough job site conditions. The built-in hook lets you hang it securely while working, and the clearly marked blue/red valves prevent connection errors. Safety warnings and pressure overload protection (up to 942.5 psi) ensure reliable operation even in high-pressure environments.

Refrigeration Digital Manifold Gauge Meter HVAC Vacuum Pressure Temperature Tester Kit with Test Clip and Pipe for Testing Maintaining Air-Conditioner, Refrigerator

Image of Refrigeration Digital Manifold Gauge Meter HVAC Vacuum Pressure Temperature Tester Kit with Test Clip and Pipe for Testing Maintaining Air-Conditioner, Refrigerator

Product Highlights

  • ✅ 【Widely Applicable】The intelligent electronic refrigerant group instrument is an auxiliary instrument for the installation, testing and maintenance of refrigeration equipment such as air conditioners,fridge and cold storage.
  • ✅ 【Multiple Test Modes】AUTOOL LM120+ Refrigerant Manifold Gauge can measure dual pressure (high and low pressure), and dual temperature measurement (high and low pressure pipeline temperature, need to connect test clamps), measure the percentage of vacuum degree; it has the functions of pressure leakage measurement, leakage time and speed recording, pressure multi- unit conversion, temperature Celsius / Fahrenheit Conversion, etc., to meet the different needs of users.
  • ✅ 【Intelligent Digital Display】The AUTOOL LM120+ Refrigerant Manifold Gauge adopts large-size LCD liquid crystal display, which is supported by LCD backlight, and the data display is clear and easy to read. Users can complete the operation through the buttons on the operation panel throughout the process. The display is rich in content, and the operation process and data are clear at a glance, which significantly improves the maintenance efficiency.
  • ✅ 【Built-in Database】The AUTOOL LM120+ Auto Digital Refrigerant Manifold Gauge has a built-in 32-bit digital processing unit and a high-precision data acquisition unit, with high data stability; At the same time, there are 89 kinds of refrigerant pressure and evaporation temperature databases built-in, which can calculate the supercooling and superheating temperature, and it is convenient to directly read the operation process data.

AUTOOL Manometer Gas Pressure Tester, Digital Manometer HVAC, 6 Units Differential Dual Port Pressure Gauge -101 to 200Kpa, Data Zeroing with Backlight LCD Display

Image of AUTOOL Manometer Gas Pressure Tester, Digital Manometer HVAC, 6 Units Differential Dual Port Pressure Gauge -101 to 200Kpa, Data Zeroing with Backlight LCD Display

Product Highlights

  • ✅ 【Measuring Range】-101 to 200 kPa / -14.6 to 29 psi , Accuracy: ±0.5% FS. INCLUDES: PT503 Digital Manometer, 1m of 1/8-Inch inside diameter silicone tubing, 2 x AAA batteries, 7 Connectors, and instructions. Switch freely between the 6 measurement units psi, kPa, mbar, bar, inHg, mmHg.
  • ✅ 【Atmospheric pressure calibration】Power on and auto zero for atmospheric pressure calibration. Note: It can not be turned on under pressure, otherwise it will lead to inaccurate measurement results.
  • ✅ 【Hold Data】The manometer is designed with data lock function, which can lock the value and interface for easy reading.
  • ✅ 【LCD Backlight Display】Large Backlit LCD provides easy viewing in low light conditions. The manometer will automatically shut off after 5 minutes of no pressure, no operation.

Digital Manifold Gauges HVAC for 92 Refrigerant Digital Gauges HVAC pressure&Temp Test Air Conditioning Tools & Equipment Supercooling/Superheating Test,for Cold Storages/Refrigerators AC Recharge Kit

Image of Digital Manifold Gauges HVAC for 92 Refrigerant Digital Gauges HVAC pressure&Temp Test Air Conditioning Tools & Equipment Supercooling/Superheating Test,for Cold Storages/Refrigerators AC Recharge Kit

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  • ✅ 【Digital Manifold Gauge Set For 92 Refrigerants】Compared with other refrigerants meter,our digital manifold gauge can be filled with 92 types of refrigerants and has a wide range of applications.Meter have multiple functions such as dual pressure/temperature test,condensation evaporation pressure/temperature test,pressure leak test,vacuum degree test,calculation of supercooling/superheating.It is suitable for refrigeration equipment such as air conditioners, cold storages and refrigerators.
  • ✅ 【Dual Pressure&Temp Test Of High/Low Pressure Pipelines】HVAC gauges can measure the pressure/temperature of the refrigerant in the high/low pressure pipelines of the air conditioner in real time.During the refrigerant pressure test,the meter can display the corresponding evaporation/condensation temperature.The smaller the deviation between the temperature measured by the temperature sensor and the evaporative condensation temp., the better the cooling effect and the quality of the refrigerant.
  • ✅ 【Condensing/Evaporating Pressure And Temp Test&Supercooling/Superheating Test】During the refrigerant pressure test,it can automatically test the refrigerant condensation/evaporation pressure temp.The lower the condensation/evaporation pressure and temp, the better the cooling effect.The degree of supercooling/superheating is automatically read.The greater the degree of superheating,the less refrigerant is filling,the lower the degree of subcooling can improve the cooling capacity of the system.
  • ✅ 【Vacuum Measurement & Pressure Leakge Test&High/Low Pressure Temp Test】Refrigerant meter vacuum table of the digital gauges hvac can be switched to each other.Vacuum test can test the percentage of vacuum measurement and vacuum pressure,can judge the air tightness of the pipeline.Calculate the pressure difference between the initial test pressure and the second test pressure, and observe whether there is any leakage in the refrigeration system pipeline,and can record the leakage time speed.

Wisscool Digital Micron Vacuum Gauge 1/4" SAE

Image of Wisscool Digital Micron Vacuum Gauge 1/4" SAE

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  • ✅ Measurement Range - The measuring range of the vacuum gauge is 99999~0.1Pa(740000~0.75Micron). Accuracy is ±5%(at 20℃).
  • ✅ Professional high accuracy Pirani vacuum sensor, accurate and fast.
  • ✅ 4 Conversion Units: Pa, mBar, mmHg, Microns. Units can be converted as needed.
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WISSCOOL Digital Micron Vacuum Gauge, Digital Pressure Tester Meter HVAC

Image of WISSCOOL Digital Micron Vacuum Gauge, Digital Pressure Tester Meter HVAC

Product Highlights

  • ✅ Precision Micron Measurement: Digital vacuum gauge specifically designed for accurate micron-level vacuum measurements crucial for HVAC system evacuation.Making sure your HVAC system is moisture-free before refrigerant charging
  • ✅ Measurement Range - The measuring range of the vacuum gauge is 99999~0.1Pa(740000~0.75Micron). Accuracy is ±5%(at 20℃). Also this hvac micron gauge specialist with temp compensation, which is optimized for HVAC applications, it includes built-in temperature compensation to ensure readings remain accurate across varying environmental conditions.
  • ✅ Clear LCD Display & Audible Alarm: Features an easy-to-read LCD screen and an audible alarm that alerts you when preset vacuum or pressure levels are reached, enhancing efficiency and safety.
  • ✅ Versatile Fittings Included: Equipped with both a 7/16 inch-20 UNF fitting (common for refrigeration) and a blue 1/4 inch SAE extension connector fitting for broad compatibility with hoses and manifolds

AUTOOL PT503 Mini Differential Pressure Gauge, Manometer Gas Pressure Tester with Dual Port Manometer, HVAC Gas & Air Pressure Tester, -101 to 200 kPa Range,6 Units, Digital Manometer with Data Lock

Image of AUTOOL PT503 Mini Differential Pressure Gauge, Manometer Gas Pressure Tester with Dual Port Manometer, HVAC Gas & Air Pressure Tester, -101 to 200 kPa Range,6 Units, Digital Manometer with Data Lock

Product Highlights

  • ✅ [6 Units Switch & Versatile Applications] The PT503 mini manometer delivers ultimate convenience with instant switching between 6 common pressure units—PSI, inHg, kPa, mbar, bar, and mmHg—at the touch of a button. No more manual conversions, no guesswork. This versatile, compact tool is engineered for fast, accurate automotive diagnostics, letting you confidently test intake, brake, exhaust, and crankshaft systems. From quick checks to detailed diagnostics, the PT503 digital manometer handles all your repair and testing needs in one reliable, portable device.
  • ✅ [High-Precision Dual-Port Differential Measurements] Differential Pressure Gauge is equipped with a high-accuracy sensor with ±0.5%FS and 0.1kPa resolution, this dual-port manometer accurately captures both positive and negative pressure differentials across a wide range of -100kPa to 200kPa.
  • ✅ [Data Lock Function for Reliable Readings] Features a convenient data lock function that freezes the displayed reading with a single tap, preventing measurement errors caused by accidental changes or environmental factors, ensuring reliable data recording.
  • ✅ [User-Friendly Portable Pressure Gauge] Designed for the professional on the go, the PT503 pressure tester combines a compact form factor with intuitive one-touch operation, making field testing and mobile diagnostics effortless. Its large 1.8-inch display ensures crystal-clear visibility of positive, negative, and differential pressure readings—even in glaring sunlight or dimly lit environments. Built for reliability and ease of use, this handheld gauge empowers you to perform accurate measurements anywhere, anytime.

Vanlison Pro-Grade Digital Manifold Gauge Set – HVAC Gauges AC Refrigerant Diagnostic Tool w/112 Refrigerant Database, Dual Temp & Pressure Sensors, Leak Test, Backlit LCD

Image of Vanlison Pro-Grade Digital Manifold Gauge Set – HVAC Gauges AC Refrigerant Diagnostic Tool w/112 Refrigerant Database, Dual Temp & Pressure Sensors, Leak Test, Backlit LCD

Product Highlights

  • ✅ ✅ Advanced HVAC Functions: Perform critical tasks like refrigerant charging, pressure leak tests (timed delta-P tracking) and system analysis in one tool. (Please note that the manifold measures relative vacuum pressure in Inches of Mercury (inHg) only (displayed as negative PSI/Kpa/Bar). This unit DOES NOT measure in Microns and is not intended for deep vacuum dehydration testing. For accurate deep vacuum readings, a standalone micron gauge is required)
  • ✅ ✅ Dual Pressure & Temperature Diagnostics: Accurately measures high/low-side pressures (-101kPa to 6000kPa) and dual temperatures (-40°C to 150°C) simultaneously with optional clamp probes for real-time superheat/subcooling calculations.
  • ✅ ✅ 112 NIST Refrigerant Database: Pre-loaded with 112 refrigerant types for automatic evaporation/condensation temp display,including R410A, R134A, R12, R404A, R32, 1234YF, etc. Eliminating manual lookup errors during AC servicing or charging.
  • ✅ ✅ Rugged & User-Centric Design: Features high-strength non-slip housing, 10MPa pressure overload protection, backlit LCD for dark environments, and 1/4" SAE ports for universal hose compatibility.
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