There is a new version of the Heiman Natural Gas detector. It does not work with the built in Hubitat driver. I had to use the community driver posted here with the following modification.
https://community.hubitat.com/t/driver-for-gas-sensor/17866/13
Change fingerprint line(#28) in the driver to this:
fingerprint profileID: "0104", deviceID: "113", inClusters: "0000,0003,0500,0009", outClusters: "0019"
Here is the new fingerprint:
ID: 8DC5
Manufacturer: Heiman
Product Name:
Model Number: GAS_V15
deviceTypeId: 113
manufacturer : Heiman
idAsInt : 1
inClusters : 0000,0003,0500,0009
endpointId : 01
profileId : 0104
application : 00
outClusters : 0019
initialized : true
model : GAS_V15
stage : 4
Mike