PPM Series Pressure Switch Provides Ease Of Use With Its Manometer Located In Its Body. The Switch Can Be Easily Adjusted By Observing The System Pressure By The Manometer. Contact Pressure Can Be Adjusted Easily With The Wire Screwdriver Provided Next To The Switch By Unscrewing The Socket Bolt. The Switch Has Normally Open and Normally Closed Contacts. It is suitable for many uses with its small size and high performance.