The Best Air Conditioning Gauges of 2023

A/C DIAGNOSTICS: Professional 3-way air conditioning diagnostic manifold gauge set for R134A, R12, R22, and R502 refrigerants. Designed for checking pressure in AC lines, leak determination, AC charging, recovery work. and complete evacuation & recharges.

THREE-WAY HOSES: Includes a 3pc, 5-foot freon charging hose with 3 colors for easy recognition, red for high pressure, blue for low pressure, and yellow for the refrigerant bottle.

ADVANCED PRESSURE GAUGES: Blue Gauge (low): 0-250 PSI, Red Gauge (high): 0-500 PSI. Extra-strength hoses with burst pressure at 3000PSI, Max working pressure: 600PSI. Celsius degree units with an easy-to-read instrument panel.

DURABLE CONSTRUCTION: Made from solid brass, aluminum, PVC, and durable plastic to stand up to heavy use and accidental drops - ideal for professional auto mechanics. Includes a detailed parts diagram and step by step instructions for DIY novices.

A COMPLETE TOOL KIT: 1pc 3-way gauge (1/4" male), 3pc hoses (1/4" female), 2pc quick couplers (1/4" male), 1pc adapter (1/4" Male to 1/2" Female)

【𝐏𝐑𝐎𝐅𝐄𝐒𝐒𝐈𝐎𝐍𝐀𝐋 𝐀/𝐂 𝐃𝐈𝐀𝐆𝐍𝐎𝐒𝐓𝐈𝐂𝐒】--AutoWanderer Tool PROFESSIONAL 3-WAY AIR CONDITIONING DIAGNOSTIC MANIFOLD GAUGE SET for 𝐑134𝐀，𝐑404𝐀，𝐑410𝐀，𝐑22 refrigerants.Manifold gauge set is designed for AC FREON CHARGING, EVACUATION, DIAGNOSTIC CHECK,AND RECOVERY WORK.

【𝐔𝐏𝐆𝐑𝐀𝐃𝐄𝐃 𝐌𝐀𝐍𝐈𝐅𝐎𝐋𝐃 𝐆𝐀𝐔𝐆𝐄 𝐒𝐄𝐓】--MADE OF 360°RUBBER PROTECTED ALUMINUM BODY + EXPLOSION-PROOF AND LEAK-FREE RUBBER HOSES + ALUMINUM QUICK COUPLERS + 3 BRASS ADAPTERS + RELATED METAL FITTINGS + DURABLE BLOW MOLDED CASE. Blue low pressure gauge: ﹣３０to５０𝐩𝐬𝐢， red high pressure gauge: ﹣３０to ８００𝐩𝐬𝐢. Hoses MAX WORKING PRESSURE is ６００𝐩𝐬𝐢 and BURST PRESSURE is ３０００𝐩𝐬𝐢.

【𝐄𝐀𝐒𝐘 𝐓𝐎 𝐔𝐒𝐄】--Made of HIGH-QUALITY BRASS AND ALUMINUM, the quick release couplings are equipped with IMPERIAL AND METRIC CONNECTIONS and ANTI-SLIP KNURLED GRIP RINGS compatible with ALL MODELS OF SERVICE PORTS. 3-Color Rubber Hose, Red For High Pressure, Blue For Low Pressure, Yellow For Re Bottle. STANDARD 1/4 INCH FEMALE FLARE fittings with valve core depressor and 45°BEND ON ONE END for convenient access.

【𝐖𝐎𝐑𝐓𝐇 𝐈𝐍𝐕𝐄𝐒𝐓𝐌𝐄𝐍𝐓】--Manifold Gauges Of Aluminum Frame Bodies Are Resistant To Wear And Corrosion, Extend Service Life. 3 Pcs 5FT Rubber Hoses With A Neoprene Coated Pressure-Resistant Interior To Provide Excellent Security And Air Tightness. Air Conditioning Diagnostic Freon Charging Set Is A Must-Have Tool Kit For Performing A/C System Work In Your Home Garage Or Mechanic Shop.

【𝐖𝐇𝐀𝐓 𝐘𝐎𝐔 𝐆𝐄𝐓】--A blow-molded case for all-round protection of the accessories, 1 manifold gauges，3 pcs 5ft rubber hoses，2 quick couplers， 1 can tap，1 valve core wrench，3 pcs acme tank adapters，1 screwdriver, 1 detailed INSTRUCTION MANUAL. ADDITIONAL SERVICES：Autowanderer Tool Will Reply To Messages Within 24 Hours, Feel Free To Discuss With Us Any Topic Related To Automotive Tools!

A/C DIAGNOSTICS: Professional 3-way air conditioning diagnostic manifold gauge set for R134A, R12, R22, and R502 refrigerants. Designed for checking pressure in AC lines, leak determination, freon top-offs, recovery work, and complete A/C recharges.

COLOR CODED HOSES: Include 3 five-foot freon charging hoses in 3 colors for easy recognition: red for high pressure, blue for low pressure, and yellow for the refrigerant bottle.

ADVANCED PRESSURE GAUGES: Blue Gauge (low): 0-350 PSI, Red Gauge (high): 0-500 PSI. Extra-strength hoses with burst pressure at 3000PSI, Max working pressure: 600PSI. Fahrenheit degree units with an easy-to-read instrument panel.

DURABLE CONSTRUCTION: Made from solid brass, aluminum, PVC, and durable plastic to stand up to heavy use and accidental drops - ideal for professional auto mechanics. Includes a detailed parts diagram and step by step instructions for DIY novices.

You will get: 1pc 3-way gauge (1/4" male) ___ 3pc hoses (1/4" female) ___ 2pc adjustable couplers (1/4" male) ___ 1pc can tap(piercing-style) (1/4" male) ___ 1pc adapter (1/4" Male to 1/2" Female) ___ 1pc custom modeled case ___ 1pc detailed user manual

COMPLETE GAUGE SET: This professional automotive AC tool kit from Orion Motor Tech includes a 3-way gauge, 3 color-coded hoses, 2 adjustable 1/4'' quick couplers, a 1/4'' to 1/2'' adapter, and both self-sealing and puncture-style can taps; enjoy hassle-free setup and easy operation as you nip your HVAC problems in the bud

HYBRID ANTISHOCK GAUGES: The 2.6" high and low pressure gauges combine the best features of dry and liquid-filled designs, with an oil-filled core resisting wear and shock and a dry dial providing better winter performance; the moisture indicator monitors your coolant’s condition in real time; and calibration screws and superior design provide ±1.6% accuracy

COLOR-CODED HOSES: Blue for low, red for high, and yellow for charging, these durable PVC hoses have 4 reinforced layers to work with daily pressure up to 600 psi (burst pressure: 3000 psi); built-in barriers ensure the purity of your refrigerant by condensation and other moisture as you work

WIDE APPLICATION: This car AC gauge set works with R134a, R12, R22, and R502 refrigerants; ideal for both DIY and professional HVAC maintenance, it allows you to measure your system's pressure, evacuate and refill coolant, and more; a heavy-duty blow-molded carrying case comes included for easy storage and transport between jobs

SATISFACTION GUARANTEED: Order this AC manifold gauge kit with your peace of mind assured thanks to OMT’s strong 1-year warranty and usual friendly 24/7 customer service; order at no risk and start enjoying better air conditioning today!

SIMPLE BUT POWERFUL - XtremepowerUS 1/4 HP 3 CFM 1-Stage Rotary Air Vacuum Pump is designed to have high efficiency and low noise output with internal high volume cooling fan for extended use (Include R-134A automotive air conditioning dispensing valve design with hand operated punch/valve control, connects all R-134a refrigerant cans with 1/4" Male threads)

HEAVY DUTY VACUUM PUMP - Die-cast Aluminum Alloy Casing enables the vacuum pump be light and durable at the same time. Equipped with brass fitting tethered safety caps to prevent oil leaks during transportation and handling.

HVAC GAUGE READING - The XtremepowerUS HVAC service gauge set is great for diagnosing and repairing AC systems. Ideal use for R12, R22, R134a and R410a

EASY OIL CHANGE - The vacuum pump features a simple Oil Fill Port for a clean pour and Oil Drain Plug positioned beneath the oil reservoir to quickly drain when needed. Checking the spillage meter will help to ensure the proper level of oil.

PACKAGE INCLUDED: Multicolored set of three 36” hoses, Manifold Gauge, R134 Can Tap, Vacuum Pump Oil Bottle, Accessories and Storage Bag to keep equipment clean and dust free

1. Multifunctional AC / HVAC Gauge Set, professional automotive air conditioning diagnostic manifold gauge set will compatible with R134A R410A R404A R22 refrigerants, perfect for AC HVAC freon charging, evacuation, diagnostic check and recovery work.

2. Convenient Four Valve Design, include 4 pieces extra long 5FT and high impact hose, colorful design for easy identification, red (blue) hose connect with high (low) pressure quick coupler and compressor high (low) side, yellow hose connect with cans bottle, black hose connect with vacuum pump

3. Complete Freon Gauge Set, come with every thing you need for a efficiently ac charging work, package include: (1) 4 way diagnostic gauge, (4) 5FT colored hose, (2) adjustable quick coupler, (1) adjustable can tap valve, (1) ACME Adapter, (2) Tank Adapter, (1) valve core remover

4. Heavy Duty Tool Set, made from durable bass and aluminum for all metal parts, stands up to heavy use and accidental drops, ideal for professional auto mechanics. Fahrenheit degree unit with easy to read instrument panel, pressure range: 0-550 PSI (blue gauge), 0-800 PSI (red gauge), 4000PSI (burst pressure), 800PSI (max working pressure)

5. Attention! Papery Instructions Not Include, we have prepared a online (electronics) Operation Guide (https://images-na.ssl-images-amazon.com/images/I/B1PLO9lf5fS.pdf) with detailed parts diagram and step by step instructions to help novice, you can download on this page or contact us for this file.

⭐COMPATIBILITY: 2-way mechanization kit diagnostic manifold gauge set fits for most cars, temperature in centigrade reading for R410A, R22, R134a, R404a.

⭐EASY TO READ: A/C gauge set has two 3 1/8 " diameter gauges, large and clear enough to read the temperature.

⭐A/C TESTING: Manifold gauge set is designed to test automotive air conditioning systems by comparing the "high side" and "low side" pressure.

⭐WELL QUIPPED: Each joint have a shut off valve to prevent loss of refrigerant. Coming with a carry case, convenient for making storage and recollection.

⭐DECENT SERVICE: Your purchase is fully protected when ordering this A/C diagnostic manifold gauge set today. If you have any concern, please feel free to contact us.

【Evaporation/Condensation Pressure and Temp Test&High/Low-pressure Temperature Test HVAC Manifold】The HVAC gauges could operate dual pressure and temperature test to help you determine refrigeration capacity of refrigeration system. The lower the pressure and temperature of the evaporation(Ev)/condensation(Co) are, the more efficient the refrigeration cycle and the greater the refrigeration capacity will do. It also could test the temperature of the refrigerant in the high/low-pressure pipes.

【Superheat and Subcooling Test&Pressure Leak Test】When refrigerant type is set and temperature clamps are connected to air conditioning pipes, HVAC gauges automatically read the degree of Superheat(SH) and Subcooling(SC). The higher the degree of superheat, the smaller the opening of the expansion valve (the refrigerant filling is less) can be determined. Calculate the pressure difference between the initial test pressure and the second test pressure to determine if the refrigerant is leaking.

【Vacuum Pumping & Refrigerant Filling & Built-in 89 kinds of Refrigerant Database HVAC Manifold】Digital manifold gauge set can connect refrigeration equipment and vacuum pump for vacuum pumping operation. Vacuum pumping can make it easier to fill the refrigerant into the pipeline. HVAC gauges is built-in 89 kinds of refrigerant pressure&temperature database. Before you fill refrigerant, you can set different types of working refrigerants according to the car needs to fill.

【Refrigerant Observation Window & Large LCD Digital Display & Multiple Unit Switching】When filling the refrigerant, you can observe the filling status of the refrigerant through the visible window. Equipped with large LCD display, clear data display and easy to read. You also can switch multiple pressure units, including kPa, Mpa, bar, inHg, PSI, along with the temperature unit switch between Celsius/Fahrenheit.

【High Data Stability & Wide Application HVAC Gauge】Built-in 32-bit digital processing unit and high-precision data acquisition unit make it have high data stability. It uses high-strength engineering plastics and a flexible non-slip silicone design, sturdy and durable. Digital refrigerant Gauge is an auxiliary instrument for the installation, testing and maintenance of refrigeration machines such as automobile air conditioner, household air conditioning, refrigeration equipment and cold storage.

【Non-slip Silicone Design & Hook Design & Refrigerant Hoses & Temperature Sensor Clamps】Silicone non-slip design can prevent slip and fall so that you can easily work without gloves. Equipped with a hook that allows you to hang the gauge on the car without holding it all the time. Besides, it is equipped with refrigerant hoses and temperature sensor clamps for better use. Connect the temperature clamp to measure the temperature. The burst pressure of the hose set is 3000 PSI.

【How to Verify The Accuracy of The Temperature】The temperature measured by the HVAC gauge is allowed to deviate by 3% from the actual temperature. There is a simple way to verify the accuracy of the temperature: Take out the black wire on the temperature clamp and put it in the boiling water. If the temperature is 100 degrees Celsius or the error is plus or minus 3%, it is normal.

【Note】According to the current level of hardware processing in the industry, it is difficult to achieve a 100% completely sealed valve on the market. The sealing degree of our guage hardware can only reach 99%. But these slight leaks will not affect the use.

【Warmly Note】Before using the HVAC guage, please make sure that refrigerant hoses and temperature sensor clamps are connected properly. Poor connection of the temperature sensor clamps will make it impossible to read the temperature. Poor connection of the refrigerant hoses will cause refrigerant leakage.

HEAVY-DUTY VACUUM PUMP - Made of die-cast aluminum housing and a composite anti-slip rubber base, which is lightweight and durable; Perfect for those who are looking to self diagnose or recharging AC systems; It maintains air conditioning systems by efficient removing moisture before refilling the refrigerant

COMFORTABLE & PORTABLE DESIGN - Ergonomic grip handle is designed for superior comfort and portability; Built-in high volume cooling fan for extended use; Oil sight glass allows you to observe the oil level and quality at any time; The oil drain valve at the bottom ensures faster and more thorough emptying; 1 bottle of 500ml vacuum oil is also included

MANIFOLD GAUGE SET DESIGNED - Manifold gauge set is designed specially to measure pressure in refrigeration equipment; Carry bag is included for convenient storage and easy transpiration; Manifolds are equipped with large viewing glasses for easy viewing of refrigerant flow, and high-quality colorful pressure gauges ensure accurate readings

COLOR-CODED HOSES - Color-coded hoses help identify the high-pressure side (red), low-pressure side (blue), and the filling hose (yellow); The hoses are made of rubber and feature a leak-proof seal design, which is very flexible, durable and not easy to damage; Perfect for maintaining R134a, R12, R22 and R502 air conditioning systems; NOT SUITABLE for R410a air conditioning systems

PACKAGE - Package includes 1 single stage vacuum pump, 1 bottle of oil, 1 leak detector and gauge set; Ideal for automotive air conditioning, HVAC work, refrigeration and other applications and industrial requirements that need high vacuum pull from a compact pump

1.【Digital Manifold Gauge Set】Manifold gauge kits are used to install, test and maintain refrigeration equipment (such as air conditioners, refrigerators and cold storage, etc.). Digital gauge has very powerful functions, such as: double pressure test, dual temperature test , digital readout, multi-unit switching, multi-mode function and built-in refrigerant database.

2.【Evaporation pressure and temperature test of manifold Gauge】The air pressure gauge can test the maximum pressure when the refrigerant changes from liquid to gas. The lowest temp when the liquid becomes gaseous.（The lower the pressure and temp of the evaporation are, the more efficient the refrigeration cycle and the greater the refrigeration capacity will do.）

3.【Condensing Pressure&Temp Test of manifold Gauge】The air pressure gauge can test the minimum pressure when the refrigerant changes from gas to liquid, and the maximum temp when the gas changes to liquid. (The lower the pressure and temp of condensation are, the higher the efficiency of the refrigeration cycle and the greater the refrigerant capacity will do.)

4.【High/Low-pressure temperature test & Pressure leakage test for HVAC tools】The hvac gauges can test the temperature of the digital refrigeration manifold in the high-pressure/low-pressure pipeline of the air-conditioning system. Pressure leakage test: Calculate the pressure difference between the initial test pressure and the second test pressure to determine whether the refrigerant leaks.

5.【The air pressure gauge can be filled with refrigerant through the visual window & Refrigerant type can be set】Built-in 89 kinds of Refrigerant Database. Before filling the refrigerant, you can set different types of working refrigerants according to the filling requirements of the car. When filling the refrigerant, you can observe the filling state of the refrigerant through the visible window.

6.【Built-in 32-bit digital processing and acquisition unit & Large LCD Digital Display】Built-in 32-bit digital processing unit and high-precision data acquisition unit, high data and stability. It also has a large-size liquid crystal display, supports LCD backlight, data display is clear and easy to read, and convenient to view various test data.

7.【Refrigeration Digital Manifold Gauge】The Air Pressure Gauge uses high-strength engineering plastics and flexible non-slip silicone design and hook design, with Air Hose Manifold, Hose Clamp Set, Toolbox, easy to test and carry. Long-life valve switch, 1/4-inch standard interface design to ensure that the manifold Gauge durability, portability and versatility.The manometer for the installation, testing and maintenance of refrigeration equipment such as air conditioners,fridge and cold storage.

8.【Automatic multi-unit switching of pressure gauge】Manifold Gauge has automatic multi-unit pressure conversion, Celsius/Fahrenheit temperature automatic conversion, including kPa, Mpa, bar, inHg, PSI, and temperature unit switching, which can meet the different needs of various tests. The hvac tools can also test the percentage of vacuum measurement and the leak time rate record.

【NOTE】The battery is not included in the package！！！ It is normal that the test data and the actual data have an error within 3%. It is necessary to consider various factors such as the test environment and ensure the normal connection of the test line.