Gas Monitoring Apparatus
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Accused Products
Abstract
Gas monitoring apparatus comprises a sensor module and an associated display module which can be physically connected together or separated. The sensor module contains gas sensors and is used to detect the concentration of gas, for example in a mine working. The sensor module transmits readings wirelessly to the display module, which includes a display to show the reading. Each sensor unit can communicate with multiple display units and vice versa.
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Citations
26 Claims
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1-13. -13. (canceled)
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14. Gas monitoring apparatus comprising a sensor module and a display module,
the sensor module comprising: -
a first housing; at least one gas sensor in the first housing; measurement means in the first housing responsive to said at least one gas sensor to generate an output indicative of a measured gas concentration; and a wireless transmitter in the first housing arranged to transmit signals indicative of the measured gas concentration; the display module comprising; a second housing; a wireless receiver in the second housing arranged to receive the signals indicative of the measured gas concentration; and a display supported by the second housing for displaying the measured gas concentration, wherein the first and second housings are connectable releasably together but are electrically isolated from one another, so that the apparatus can be operated with the display module and the sensor module connected together or physically separated. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification