Druck DPI612-PFP-100G Pressure Calibrator with FREE UPS II: The DPI612-PFP-100G is a high-accuracy pressure calibrator with a wide pressure range and a built-in UPS for uninterrupted operation. It is ideal for calibrating pressure transmitters, transducers, and gauges in the field or in the lab. The DPI612-PFP-100G comes with a FREE UPS II, which provides up to 8 hours of backup power in the event of a power outage. This makes it ideal for use in remote locations or in areas where power outages are common.