Hi there, just wondering if you think this is OK. We got our alarm put into our house years ago and the keypad is downstairs and the alarm control panel (where the power and battery is located - I might have wrong term) is upstairs in a bedroom. Now the bedroom is being used by one of our kids and his head is close to where the control panel is. It hums...presumably because it is keeping the failover battery topped up - would you be concerned health wise of your little kid's head being close to it? Thanks! Wishbone.