My company uses them regularly as one of their alarm systems when they need to notify the maintenance technicians of something that’s not working because they are reliable and work even if the phone lines are down.
Also fire departments, hospitals and other medical services. They’re extremely reliable, last a very long time on a charge and don’t shatter when you accidentally drop it.
My company uses them regularly as one of their alarm systems when they need to notify the maintenance technicians of something that’s not working because they are reliable and work even if the phone lines are down.
Why should people stop using them if they work?
Also fire departments, hospitals and other medical services. They’re extremely reliable, last a very long time on a charge and don’t shatter when you accidentally drop it.