Tawkon App Provides High RF Level Warnings

If you worry about radio frequency radiation coming from your mobile, and you use some BlackBerry models, you can download a $10 app that provides both a monitor and alerting system if your device is putting out excessively strong signal.

That can happen if you are inside a building with thick walls, if you are far from the closest cell tower, are in a deep signal fade area or even if you are holding the device in a way that increases signal interference.