| 摘要 |
A monitoring system includes a master station and a plurality of monitor stations which are spaced from the master station. Each of the monitor stations includes a programmable computer which is connected with a radio and a sensor. The computer and radio may be enclosed in an explosion-proof housing. To change a program in the computer at a monitor station, the program change may be transmitted from the master station to the monitor station. In addition, data relating to a condition to be sensed may be transmitted from the master station to the monitor station.
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