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Apparatus and method for wireless gas monitoring

  • US 6,670,887 B2
  • Filed: 05/14/2001
  • Issued: 12/30/2003
  • Est. Priority Date: 10/14/1998
  • Status: Expired due to Fees
First Claim
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1. A method of monitoring for a selected gas from a potential source of the selected gas, said method comprising the steps of providing a plurality of gas monitor stations at locations spaced from the potential source of the selected gas, operating data entry apparatus disposed at each of the gas monitor stations, said step of operating data entry apparatus at each of the gas monitor stations includes entering data at each of the gas monitor stations relating to a predetermined magnitude of variation in concentration of the selected gas, sensing atmosphere adjacent to each of the gas monitor stations, and transmitting a radio signal from any one of the gas monitor stations to a master station in response to sensing of a variation in concentration of the selected gas greater than the predetermined magnitude.

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