Majority of population is wearing some sort of smartwatch tho.
Absence of PM2.5 is exactly how I debunked a false smoke alarm while I was overseas. Or I flagged excessive power use after friends left appliance on while I was away. Or water leak sensors flagged one toiled cistern dripping.
Absence of PM2.5 is exactly how I debunked a false smoke alarm while I was overseas. Or I flagged excessive power use after friends left appliance on while I was away. Or water leak sensors flagged one toiled cistern dripping.