VIVOHOME Digital HVAC Manifold Gauge Set — R134a/R1234yf Quick Couplers, Backlit LCD & -14.5–800 psi

The VIVOHOME Digital HVAC Manifold Gauge Set is a handheld electronic manifold designed for accurate refrigerant pressure, vacuum measurement, and leak testing across R134a and R1234yf vehicle systems.

Engineered for technicians and serious DIYers, this digital manifold combines a wide pressure range with multi-refrigerant support and quick couplers for common automotive gases. The instrument integrates a backlit LCD, automatic power-off, and robust mechanical components to withstand field use. It arrives with three shut-off hoses, quick couplers and self-sealing can taps, plus a carrying case for organized transport.

How precise and broad is the pressure and refrigerant support?

This VIVOHOME gauge reads pressures from -14.5 to 800 psi with an accuracy of ±0.5% FS and supports selection of 88 refrigerant types, helping you match readings to the system you service. The display and settings let you choose units and view converted measurements quickly.

• Pressure range: -14.5 to 800 psi for vacuum and high-pressure readings
• Accuracy: ±0.5% FS for reliable diagnostics
• Supports 88 refrigerants, including R134a and R1234yf
• Multi-unit display and Celsius/Fahrenheit temperature modes

What features help with leak testing, vacuum work, and safety?

The set offers precise pressure-hold leak testing and vacuum measurement capability suitable for installation and maintenance tasks. Safety-focused design elements include an A2L refrigerant warning marker, double overload capacity, and durable hose materials rated well beyond typical service pressures.

• Pressure-hold leak test mode for detecting slow losses
• A2L refrigerant warning and automatic power-off to conserve battery
• Hoses built with brass fittings and high burst pressure ratings
• Three shut-off valves for controlled isolation during service

How easy is it to operate and read the results on the tool?

The large backlit LCD and zero-level menu layout make measurement readouts clear, even in dim working conditions. Intuitive controls and automatic unit conversion reduce setup time so you can get reliable data quickly.

• Large LCD with backlight for low-light visibility
• Zero-level menu design for straightforward navigation
• Automatic multi-unit pressure conversion for convenience
• Intelligent APO (auto power-off) to preserve batteries

What comes in the kit and what should I prepare before using it?

The kit includes three heavy-duty hoses with shut-off valves, quick couplers for R-134a and R-1234yf, self-sealing can taps, a hanging hook, and a carry case for neat storage. Note the quick coupler ships open and the gauge requires three AAA batteries, which are not included.

• Included: three hoses with shut-off valves, R-134a and R-1234yf couplers
• Self-sealing can taps for convenient charging and recovery prep
• Hook for hands-free hanging and a protective carry case
• Requires three AAA batteries (not included); set coupler knob to closed before connecting

Who this is for: The VIVOHOME Digital HVAC Manifold Gauge Set is aimed at HVAC professionals, mobile technicians, and experienced DIYers who need accurate refrigerant diagnostics across multiple automotive systems. It balances durability and precision for field work, offering fast setup, clear readouts, and broad refrigerant compatibility — useful when servicing modern vehicles that use R134a, R1234yf, or other supported refrigerants.