AR0-300 | Analog Pressure Gauge, 0–300 PSI

Overview

AR0-300 – Pressure Gauge 0–300 PSI – Medium-Pressure System Monitor
The AR AR0-300 analog pressure gauge is a durable, precise measuring instrument engineered by
Annovi Reverberi for accurate monitoring of water and fluid pressure in pump and washer systems.
With a measurement range of 0–300 PSI, this gauge provides the ideal balance
between sensitivity and durability, making it suitable for medium-pressure cleaning systems, fluid
transfer applications, and general equipment monitoring. A rugged mechanical design, clear dial,
and high-quality materials ensure consistent, reliable performance for both residential and
professional users who require dependable pressure control.

Clear, Easy-to-Read Dial

Designed for precision and clarity, the AR0-300 features a large, legible analog face with bold
black numerals on a white background for excellent visibility in a wide range of lighting
conditions. Evenly spaced markings make it simple to read pressure levels at a glance so operators
can quickly verify system status and make real-time adjustments. The 0–300 PSI
span offers enough sensitivity for mid-pressure washers and pumps while maintaining strength and
resilience against sudden pressure changes or fluctuations.

Brass Housing & Bourdon Tube Mechanism

The AR0-300 is built around a corrosion-resistant brass housing and a
precision-calibrated internal mechanism to ensure accuracy and longevity. Brass provides superior
resistance to oxidation, rust, and chemical corrosion, making it a preferred material for wet and
detergent-heavy environments. Inside, a carefully formed and heat-treated
Bourdon tube converts pressure changes into smooth, proportional needle
movement across the dial. This proven mechanical system is engineered for long-term stability,
maintaining calibration accuracy even after extensive use.

Shatter-Resistant Lens & Sealed Housing

A durable, shatter-resistant polycarbonate lens protects the gauge face from
impact and environmental exposure while preserving long-term clarity. The sealed housing prevents
moisture, dirt, and debris from entering the gauge, protecting the internal movement and keeping
the dial clean and readable. This sealing supports reliable operation in humid, dusty, or
temperature-variable conditions commonly encountered in cleaning and industrial environments.

Easy Installation & Stable Readings

Installation is simple thanks to a standard threaded connection that mounts easily onto pressure
washers, pumps, or water lines. The compact design fits neatly within crowded system layouts while
providing an unobstructed viewing angle. The precision-machined connection delivers a secure,
leak-free seal that maintains consistent pressure readings. Internally, the Bourdon tube, gear
assembly, and pointer movement are balanced for vibration resistance, reducing needle flutter and
ensuring smooth, stable readings across the entire 0–300 PSI range. Each gauge is factory-tested
and calibrated for precise, repeatable performance.

Low Maintenance & Long Service Life

Maintenance requirements are minimal. Periodic inspection to keep the lens clean, verify that the
threaded connection is tight, and check for physical damage is typically all that is needed. Brass
construction eliminates the need for additional coatings to resist corrosion, and the sealed
housing protects the internal mechanism from contamination, supporting long service life in both
indoor and outdoor use.

Typical Applications

• Residential and commercial pressure washers running up to 300 PSI.
• Medium-pressure irrigation and water distribution systems.
• Pump-driven fluid transfer and circulation systems.
• General equipment monitoring on compressors, wash bays, and industrial skids.
• Diagnostic checks for leaks, blockages, and over-pressure conditions.

The AR AR0-300 analog pressure gauge, rated for 0–300 PSI, embodies Annovi
Reverberi’s standard of excellence in precision, durability, and functionality. Featuring a rugged
brass housing, vibration-resistant mechanical movement, and a clear, easy-to-read face, it
delivers accurate, long-lasting performance in a compact, low-maintenance design. Ideal for
professionals and homeowners alike, this gauge provides reliable pressure tracking, enhanced
safety, and superior control in any medium-pressure cleaning or pumping system.