Wireless Water Differential Pressure Meter, Series 490W

Wireless Water Differential Pressure Meter, Series 490W

Wireless Water Differential Pressure Meter, Series 490W

Posted on: 05/02/2025

The Dwyer Series 490W Wireless Water Differential Pressure Gauge optimizes HVAC systems with high accuracy, reducing labor and saving time. Trusted by Atlantic Testing, the 490W delivers maximum comfort and energy efficiency. Learn more today!

Dòng 490W đang được sử dụng trên đường ống

Wireless Water Differential Pressure Meter, Series 490W

The Dwyer Series 490W Wireless Water Differential Pressure Gauge is the most precise and user-friendly pressure gauge on the market. Paired with wireless transmitters and mobile devices, a single operator using the 490W can monitor and balance hydraulic systems in less time and with fewer personnel than traditional hydraulic balancing kits. Additionally, the 490W has no hoses or manifolds—meaning no extra accessories to carry.

The 490W simplifies the job effortlessly.

This is truly a game-changing breakthrough in water system testing and balancing. See how top experts at Atlantic Testing in Powhatan, VA have leveraged the 490W to cut costs and labor without compromising accuracy.

Atlantic Testing

Máy cân bằng sử dụng 490W để đo bằng điện thoại

Calibration with the 490W and Dwyer’s Free Hydronic App

Atlantic Testing, founded in 2007 as a testing, adjusting, and balancing company, has grown into a leading testing provider serving the Mid-Atlantic region. They offer solutions for all types of projects, from retail and industrial to military and government. With the most qualified and experienced technicians in the area, Atlantic Testing is a full-service Building Certification company, providing NEBB-certified testing solutions as well as additional services such as Sound and Vibration Measurement, Building Envelope Testing, and more.

When it comes to hydronic system testing and balancing, Atlantic Testing has adopted the Dwyer 490W Wireless Water Differential Pressure Gauge—and as President and Chief Engineer Jon Sheppard puts it:
"They’re wireless, lightweight, and always within reach. They’re mobile and require only one operator. When it comes to hydronic HVAC testing and balancing, the 490W is a game-changer."

Feels good

Hệ thống HVAC cân bằng làm cho tòa nhà thoải mái cho người ở

Comfort When Commissioning Any Project

When entering a building, one of the first things you notice—whether consciously or not—is the effectiveness of its heating, ventilation, and air conditioning (HVAC) system.

Is it too hot? Too cold? Does one area feel just right, while another doesn’t?

In today’s world, hydronic HVAC systems have become the standard for achieving and maintaining consistent, optimal comfort. These systems are far more cost-effective to operate than large air-based cooling systems. However, ensuring that water and airflow within these systems are accurate and optimized is crucial.

Why?

Because when water and airflow are precisely regulated and optimized, the system runs smoothly. And when the system runs smoothly, people feel comfortable.

When occupants in a building are comfortable, it results in fewer complaint calls (and therefore fewer unnecessary work hours), as well as reduced wear and tear on equipment and control valves. Year after year, these benefits add up—leading to significantly lower energy and maintenance costs.

Out with the old, in with the new.

Dòng 490W đang được sử dụng trên đường ống

Đồng hồ đo chênh áp suất nước không dây, Dòng 490W

For decades, analog gauges were the industry standard. But these devices were bulky and time-consuming to operate. The old gauges came with massive distribution manifolds and hoses, requiring connection to balancing valves or pump pressure ports. Additionally, you had to vent the necessary systems and let water flow through the distribution manifold to ensure all air was purged.

Not only were they inconvenient to use, but they also demanded more manpower. Operating these analog gauges required more than one person since climbing ladders to access ceiling panels while handling a large, cumbersome gauge was nearly impossible.

Industry veterans will remember just how much of a hassle these measurement tools used to be.

But the Dwyer Series 490W Wireless Differential Pressure Gauge is here to change everything.

Ghi lại số liệu đọc từ 490W trên máy tính bảng chạy ứng dụng miễn phí của Dwyer

Record readings from the 490W on a tablet using Dwyer’s free Hydronic app.

With no hoses or distribution manifolds, the 490W is completely wireless and can be operated by a single technician, significantly reducing costs. It saves time—there’s no need to attach the gauge to anything in the system, and it can be taken straight up the ladder with the technician. Most importantly, it delivers greater accuracy than traditional gauges.

So that’s great. The benefits are clear.

But how do you ensure that water and airflow in your hydronic HVAC system are precise and optimized?

The answer: Testing.

Some signs of an imbalanced system—like hot and cold spots—are obvious and easy to detect. However, other indicators—such as pressure and flow rates—are less apparent and harder to diagnose. Ultimately, the key to identifying and fully understanding all the signs, and therefore achieving a properly balanced and optimized system, is accurate testing.

And that’s where Atlantic Testing comes in.

Atlantic Testing = Proper Testing

Wireless Differential Water Pressure Gauge, Series 490W

Equipped with the highly accurate and well-calibrated Dwyer Series 490W Wireless Differential Water Pressure Gauge, Atlantic’s testing technicians can easily inspect entire buildings and ensure water flows through the hydronic system precisely and at the correct temperature.

Jon Sheppard stated, "We can walk around the job site, and people wouldn’t even know we have an extremely precise gauge right in our pocket." He continued, "And if we’re just walking around the site with a client, we have the ability to pull the gauge straight from our pocket—since it’s our phone—place it on a pump, balancing valve, or coil, and actually conduct some tests right there with them."


Wireless Water Differential Pressure Meter, Series 490W

The 490W Series is housed in a hard case with an optional handheld device.