The Ashcroft® Model GC55 is a compact high differential industrial pressure transducer, ideal for professional filter monitoring, HVAC hydronic cooling and heating systems and pumping controls. A three wire 4-20mA or 1-5 Vdc output signal connects the transducer to external controls or data acquisition.

The GC55 contains two polysilicon thin professional film sensors with welded stainless steel wetted components to accommodate wet or dry pressure media up to 300 psid. A robust cast aluminum housing features a bright LED front panel display for local indication along with a button to allow the user to select between the DP value and the line pressure readings from either detection. The user also has the ability to re-range the transducer and set trip points for the on-board switch contacts.