Product Review

The versatility of 60 on-board refrigerant profiles means the Testo 549 digital manifold is the only gauge that you need. The proven, rugged design will give you years of dependable service. With optional temperature probes the Testo 549 digital manifold provides accurate, real-time superheat and sub-cooling at the push of a button. made in United States. Manufactured by Testo, Inc.