The Pfeiffer TPG-202 Portable Piezo/Pirani gauge is a battery operated handheld gauge. It can be operated with a 9V battery, or alternately with a 12V external power supply. With a Measurement range from 1.2 x 10³ to 5 x 10^-4mbar and an NW/KF-16 flange it's perfect for low and medium vacuum applications. The Piezo-resistive pressure transducer in the TPG-202 allows for gas-type independent pressure measurement above 10 mbar. The TPG-202 also has a high accuracy atmospheric pressure indicator. The TPG-202 has an integrated data logger and can be connected to a computer and operated using DokuStar software (not provided with gauge). The DokuStar Software is only available with the TPG 201/202 Accessories kit. The DokuStar Software is only available with the TPG 201/202 Accessories kit. For complete operation and specs download the TPG-202 Operation Manual .pdf below.