Inficon Pilot Plus KF-16 Operates for 45 hours on one 9V batteryQuick calibration specific to local pressureDisplays in micron, Pascal, Torr or millibarLow battery indicator1-year replacement warranty Pilot Plus Vacuum Gauge with KF-16 Fitting INFICON Pilot Plus Vacuum Gauge incorporates several innovative features for unsurpassed performance. Like the original Pilot Vacuum Gauge, it's the only gauge to use a Pirani sensor for greater accuracy and the ability to measure the entire vacuum process, from atmosphere down to one micron. You'll know instantly if your connections are vacuum-tight.