Yeah Hive account@esther-may, litmus test for acidity of chemical substance .

There are extensive list off gadgets that can act as “gas detectors “ , I honestly do not think an average customer can afford them tho .

But you just gave me a business idea - if I can scale the gas detectors we use at the gas pressure reduction and metering stations (PRMS) to less sophisticated ones that homes can afford . It will save lives and I can make money too.
Thanks dear , I will work on this and get back to you ;)