From the product description, check product page for current description, price and availability:
- Black Steel Case With Chrome Bezel
- Brass Socket And Movement
- Phosphor Bronze Bourdon Tube
- Dry Non-Fillable
- 3-2-3% Accuracy
I use a similar gauge (different manufacturer, model & specifications) in my Spunding Valve Build. A Spunding Valve allows you to ferment under pressure, naturally and precisely carbonate in the keg, fix over-carbonated beers and more. See: Build a Spunding Valve for more info.
5/31/19 10 AM Central: This is selling for just $2.99. Shipping is also free to many US addresses, with a qualifying order, as part of the Amazon’s Add On promotion. Prices, shipping and availability can change quickly. Please note that product prices and availability are subject to change. Prices and availability were accurate at the time this post was published; however, they may differ from those you see when you visit Amazon. Check the product page for current price, description and availability. Also: Recent Amazon Finds and Amazon Fillers Resource Page
More: Recent Amazon Finds
Make sure the components you use are compatible and rated for your intended application. Contact manufacturer with questions about suitability or a specific application. Always read and follow manufacturer directions.