| Its instruments include transmitters and sensors, liquid manometers, recorders and dataloggers, as well as indicators and displays. |
| First invented in the seventeenth century, manometers are used to measure the pressure of gases. |
| Other manometers contain a sealed-off vacuum at one end, so that changes in atmospheric pressure don't have to be accounted for in calculations. |
| Contract awarded for Thermometers, manometers, pressure control, valve games, photocells, diesel pumps. |
| In animals it is easy to attach manometers to the carotid artery and to measure the blood pressure accurately. |
| Three-dimensional vertical flow and lateral hyporheic flow in and around structures are monitored using an arrav of small air-water and oil-water manometers. |
