Refrigerant pressure gauge
Refrigerant pressure gauge specially designed for HVAC and refrigeration servicing
Dual high/low pressure measurement in a single manifold-compatible instrument
Silicone oil filled for superior vibration and shock resistance
High accuracy performance ensures reliable readings during charging and diagnostics
Compatible with major refrigerants: R22, R134a, R404A, R407C, R410A (and more)
Rugged construction withstands demanding field service conditions
Clear, easy-to-read dial with color-coded pressure zones for quick interpretation
Ideal for air conditioning repair, refrigerant recovery, system evacuation, and charging
Enhances technician efficiency and measurement confidence in professional HVAC work
Application
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Air conditioning maintenance and refrigerant charging
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Refrigeration systems and cold storage equipment
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Compressors, evaporators, and condensers
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HVAC servicing tools (home & industrial use)
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Refrigerant pressure monitoring systems
Description
This refrigerant pressure gauge is engineered for precise measurement of both low and high pressure in HVAC and refrigeration systems. It supports a wide range of refrigerants, making it suitable for both residential and industrial servicing applications.
The gauge features a 304 stainless steel case for excellent corrosion resistance and durability, combined with a copper movement (Bourdon tube) for stable and reliable pressure transmission.
Filled with silicone oil, the gauge provides outstanding vibration resistance, reduces internal friction, and ensures smooth pointer movement even under fluctuating pressure conditions.
The polycarbonate (PC) lens offers high transparency and impact resistance, allowing clear readings while maintaining durability in harsh environments.
Additionally, the built-in damping screw minimizes pressure pulsation effects, protecting internal components and improving measurement accuracy.
Features
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Dual High & Low Pressure Measurement
Suitable for comprehensive HVAC system diagnostics -
Wide Refrigerant Compatibility
Supports R22, R134a, R404A, R407C, R410A -
Silicone Oil Filled (Anti-Vibration)
Enhances stability and protects internal components -
304 Stainless Steel Housing
Corrosion-resistant, durable, and long service life -
Copper Movement (Bourdon Tube)
Stable performance and high reliability -
High-Transparency PC Lens
Impact-resistant and easy-to-read display -
Built-in Damping Screw
Reduces pressure pulsation and improves accuracy -
Customizable Options
Thread type, pressure range, and units available
Technical Details
Accuracy Class
1.6
Dial Diameter
55 mm
Case Material
304 Stainless Steel
Lens Material
Polycarbonate (PC)
Movement
Copper (Bourdon Tube)
Filling Medium
Silicone Oil
Pointer
Aluminum, black coated
Low Pressure
-0.1 ~ 0 MPa / 0 ~ 2.5 MPa -30 ~ 0 psi / 0 ~ 350 psi -1 ~ 0 bar / 0 ~ 16 bar -76 ~ 0 cmHg / 0 ~ 35 kg/cm²
High Pressure
0 ~ 55 kg/cm² (0 ~ 800 psi) -1 ~ 0 bar / 0 ~ 35 bar -30 ~ 0 inHg / 0 ~ 500 inHg -0.1 ~ 0 MPa / 0 ~ 3.8 MPa
Compatible Refrigerants
R22 R134a R404A R407C R410A
Working Pressure Recommendation
Stable: ≤ 3/4 of full scale Fluctuating: ≤ 2/3 of full scale Pulsating: ≤ full scale Connection Size: SAE 1/4
Accessories
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