VIVOHOME Digital HVAC Manifold Gauge Set R134a/R1234yf – Backlit LCD, ±0.5% Accuracy

The VIVOHOME Digital HVAC Manifold Gauge Set is a portable, professional-grade tool for accurate refrigerant pressure measurement, leak testing, and vacuum work with built-in support for R134a and R1234yf systems.

This digital manifold combines a wide measurement range, multi-refrigerant compatibility, and a readable backlit display to streamline air conditioning diagnostics and servicing. Designed for technicians and advanced DIYers, it replaces analog gauges with precise digital readouts, automatic unit conversion, and safeguards like overload protection and automatic power-off. The kit ships with hoses, quick couplers, self-sealing can taps, a hang hook and a carry case for jobsite mobility.

How accurate and comprehensive are the pressure readings?

The gauge delivers high-accuracy pressure measurement across a broad span from -14.5 to 800 psi with ±0.5% FS accuracy, letting you trust readings for charging and leak checks. It supports automatic unit conversion and displays values clearly on a large backlit LCD so you can read results in dim workspaces.

• Pressure range: -14.5 to 800 psi
• Accuracy: ±0.5% of full scale
• Auto unit conversion and Celsius/Fahrenheit toggle
• Large backlit LCD for low-light visibility

Which refrigerants and vehicle systems does it work with?

The VIVOHOME manifold is compatible with 88 refrigerant types, including modern automotive refrigerants R134a and R1234yf. The kit includes both R-134a and R-1234yf quick couplers plus self-sealing can taps, enabling fast connection to a broad range of vehicle and HVAC systems.

• Built-in selection for 88 refrigerants
• Includes R-134a and R-1234yf quick couplers
• Self-sealing can taps for safe charging
• Visual window shows refrigerant charging status

What safety and durability features are included?

Constructed from high-strength engineering plastic and premium brass fittings, the set is built to withstand workshop demands. Hoses and valve hardware are rated for heavy use, with a high working pressure and a very high burst resistance to enhance reliability on the job.

• Sturdy engineering-plastic housing
• Brass fittings and shut-off valves for strong sealing
• Working pressure up to 800 psi; burst-rated components
• A2L refrigerant warning and double overload capacity (10 MPa)

How easy is it to use during installation and service?

The manifold is designed for efficient diagnostics: three hoses with shut-off valves, a hook for hands-free hanging, and an intuitive zero-level menu make common tasks quicker. Intelligent auto power-off conserves batteries, while the zeroing and leak-hold functions simplify pressure testing and charging workflows.

• Three heavy-duty hoses with shut-off valves
• Hang hook for hands-free operation
• Zero-level menu and pressure-hold leak testing
• Auto power-off (APO) and battery-saving features

Note: The quick coupler ships in the open position — rotate the knob to closed before connecting. The unit requires 3 AAA batteries (not included).

Who is this for: HVAC technicians, mobile A/C servicers, and experienced DIY mechanics who need a rugged, accurate digital manifold for automotive and small-system refrigeration work. It’s ideal for users who value multi-refrigerant support, clear digital readouts, and a complete kit that’s ready for field service with durable hoses, quick couplers, and a handy carry case.