- Choosing a selection results in a full page refresh.
Need Help?
The DWYER 1820-2-ST Differential Pressure Switch is a precision-engineered device designed to monitor and control differential pressure in HVAC systems, cleanrooms, and industrial process applications. Featuring a highly sensitive diaphragm and reliable mechanical switching mechanism, this pressure switch provides accurate...
Couldn't load pickup availability
The DWYER 1820-2-ST Differential Pressure Switch is a precision-engineered device designed to monitor and control differential pressure in HVAC systems, cleanrooms, and industrial process applications. Featuring a highly sensitive diaphragm and reliable mechanical switching mechanism, this pressure switch provides accurate actuation for critical systems that depend on maintaining specific pressure thresholds. With its adjustable set point and robust performance characteristics, the DWYER 1820-2-ST ensures dependable operation in a variety of demanding environments.
Built for durability and long-term performance, the DWYER 1820-2-ST Differential Pressure Switch is housed in a rugged enclosure that resists corrosion, moisture, and dust intrusion. This ensures optimal performance even in harsh operating conditions. It offers a pressure range and set point suitable for low differential pressure monitoring, making it ideal for applications like air filters, fans, blowers, and duct static pressure control. Its SPDT snap-action switch delivers rapid response and consistent switching accuracy.
The DWYER 1820-2-ST is engineered with user-friendly features, including an external set point adjustment and clearly labeled pressure ports for simple installation and maintenance. The switch’s design allows for quick wiring and connection, reducing setup time and enhancing operational efficiency. It is compatible with a wide variety of control systems and is often integrated into both new and retrofitted installations.
A trusted solution in critical control environments, the DWYER 1820-2-ST Differential Pressure Switch delivers performance, precision, and safety in one compact unit. Whether ensuring proper ventilation in a commercial building or maintaining system integrity in a pharmaceutical production area, this switch supports consistent system performance. Backed by the proven reliability of the Dwyer brand, the 1820-2-ST is an essential component for professionals seeking accurate differential pressure monitoring.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
Thanks for subscribing!
This email has been registered!