The model HBT-1000 is manually operated. It attaches to any standard 1 inch aerosol can valve with a male stem. It requires a water source, bucket or tap. It can produce up to 1000 psi. It can also be used with a gas or air supply. Shielding the can to be tested in a protective container is neccessary. This instrument gauge has a 4 1/2 face, 0-600psi. 0.5% accuracy is equipped with a maxium indicating 2nd hand. Which allows you to see the exact burst pressure of the can being tested. It also comes with a heavy duty carring case for portability. The gauge is also supplied with a calibration test report tracable to N.I.S.T. Other higher perssure burst test gauges are also available.