RALBIL Digital Manifold Gauge Set — 92 Refrigerants, Dual Pressure & Vacuum with Backlit LCD

RALBIL Digital Manifold Gauges are a portable, multi-function HVAC diagnostic and service tool that measures high/low pressure, performs vacuum and leak tests, and supports refrigerant charging for 92 refrigerant types.

This compact digital manifold set combines a high-precision sensor suite, a 32-bit processor and an easy-to-read backlit LCD so technicians and advanced DIYers can diagnose, evacuate and charge cooling systems quickly and accurately. Designed for automotive A/C, home HVAC, refrigeration and cold storage tasks, the unit replaces traditional analog gauges with digital accuracy, selectable units and built-in refrigerant profiles for common gases like R22, R134a and R410A.

How does this gauge simplify refrigerant charging and pressure reading?

The RALBIL gauge shows real-time high and low side pressures, computes condensing and evaporating temperatures, and displays fill status while charging. You can switch pressure and temperature units instantly to match your workflow.

• Built-in database of 92 refrigerants for accurate temp/pressure conversion
• Selectable units: kPa, MPa, bar, inHg, PSI and °C/°F
• Pressure range 0–6000 kPa for wide system compatibility
• LCD backlight for clear readings indoors or outdoors

What vacuum and leak-detection features are included?

You can attach a vacuum pump to evacuate systems before charging and run automatic leak checks that report pressure decay and elapsed time. The vacuum reading range covers deep vacuums and helps confirm a clean, moisture-free system prior to refrigerant introduction.

• Vacuum range: -101 kPa to 0 kPa for reliable evacuation
• Pressure leak mode shows pressure change and leak duration
• Auto calculations to help detect and quantify leaks quickly
• Resettable ZERO function to ensure measurement accuracy

Is the gauge rugged and easy to use on the jobsite?

The chassis blends durable industrial plastics with brass fittings and a portable hook for hands-free work. Long, color-coded hoses with a 1/4" SAE interface resist high pressure and are sized for professional service tasks.

• Durable materials and brass connections for impact resistance
• 57.48-inch (146 cm) rubber hoses: 600 PSI operating pressure
• Portable hook for convenient placement while servicing systems
• Simple valve operation; follow recommended break-in steps if needed

What safety, maintenance and warranty information should I know?

Follow the manufacturer’s reset and valve break-in recommendations to prevent small leaks from new valve gaskets. RALBIL includes responsive customer support and a three-year warranty to protect your purchase.

• If new gauge leaks, cycle high and low valves 20–30 times to seat gaskets
• Long press the ZERO button between different tests for accuracy
• Three-year warranty plus 24/7 customer support for troubleshooting
• Avoid using damaged hoses or fittings and confirm proper connections

Who is this for: The RALBIL Digital Manifold Gauges are built for HVAC professionals, refrigeration technicians and skilled DIYers who need a compact, accurate tool for diagnostics, evacuation and refrigerant charging across automotive, residential and commercial systems. If you value digital precision, multiple refrigerant compatibility and on-site durability, this manifold gauge set offers a portable, feature-rich option to streamline troubleshooting and servicing tasks.