Easily mounted to the cabinet or wall- the MXR-1 allows for ergonomic control and precision delivery with Porter glass indicator tubes. Convenience, accuracy, and reliability- built right into the cabinets or wall.
The MXR-1 is equipped with easy-to-read flow indicator tubes, on/off switch, oxygen flush button, and oxygen quick connect for fast connection of emergency oxygen equipment. Ergonomic single motion control knobs allow for easy flow and percentage adjustment. This space-saving cabinet-mounted flowmeter comes standard with a NIOSH recommended interconnect between the delivery unit and the vacuum system for dual failsafe operation.
For more detail: http://www.porterinstrument.com/product/dental/Porter-MXR-1-Cabinet-Mounted-Flowmeter