Need More Details?
If you’d like to check stock availability, request the latest price, or view more product images, simply click the "Request for Price" button and our team will assist you promptly.

The PRO INSTRUMENT Compound Gauge, with a range of -76 cmHg to 7 kg/cm² (-30 inHg to 100 PSI) and a 3/8" connection, is a critical component for accurately monitoring pressure and vacuum in various industrial applications. This robust 4-inch gauge is engineered for environments where both positive pressure and vacuum readings are essential, ensuring precise control and operational safety.
Key Features:
This gauge offers precision and durability, making it ideal for HVAC systems, refrigeration cycles, vacuum pumps, and fluid processing systems. The clear display and robust build ensure reliable performance, preventing operational failures and maintaining safe pressure levels. The PRO INSTRUMENT Compound Gauge is a dependable solution for engineers and technicians requiring accurate pressure and vacuum monitoring.
For dependable pressure and vacuum monitoring in your industrial or automation systems, trust the PRO INSTRUMENT Compound Gauge. Contact us at info@ramautomations.com or visit our website for more information.
Returns Policy
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.
Shipping
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.