Additel ADT680A [ADT680A-20] Digital Pressure Gauge, 0.2% FS Accuracy - Gauge. The Additel ADT680A Digital Pressure Gauge is designed with extensive pressure and calibration options in mind. The ADT680A features data logging and Bluetooth technology, paired with a stainless steel outer shell and durable IP67 ratings to ensure efficient reads out in the field. If working in an area with potentially explosive materials, see the ADT680AEx option. The membrane button design on the ADT680A mean technicians with tight timetables can navigate the gauge interface quickly and with ease, with a backlight available for dim environments. This efficient design is enhanced by the ability to display data in large font for readability up to several meters away.