Model 635-1 has the following features: designed in a rubberized housing, has a large illuminated display, can read pressure dew points, temperature and humidity measurements. It has the capability to handle 3 probe inputs. Battery type: Alkaline AA.
The 635-1 for measuring air moisture, material equilibrium moisture and pressure dewpoint in compressed air systems. Up to 3 temperature or humidity probes can be displayed; data transmission is radio-controlled, i.e. wireless.