Sigfox's low-power network can't send YouTube videos or even a long email message, but the French company has found a lot of customers who need a cheap, battery-friendly network. This GPS sensor used in antitheft systems for cars periodically reports the location of a vehicle. Sigfox showed it and several other products off at the Mobile World Congress show in Barcelona.
Networking smarts can help firefighters make sure there's enough water pressure to actually fight fires. This pressure-monitoring system is built by Bayard, a French company that supplies most fire hydrants in France.
Thieves can try to defeat burglar alarms with jamming technology that blocks them from sending warnings using conventional mobile-phone networks. This alarm from Securitas Direct uses Sigfox communications as a backup alert channel to defeat the jammer.
Barcelona is installing trash cans that use Sigfox's network to report when they're getting full so the city can empty them sooner -- and not have to send collectors out to trash cans that aren't full.