Mobile Warning Sign that illuminates if a phone is in use

[Drago]

Would you count someone using a bluetooth speaker in a nearby house as blocking - I would not. It seems like the system just checks for a signal and overrides the sign. The smart thing would be to look for a moving signal. But as mentioned before, having a flashing sign is fairly pointless as the driver on the phone will be too busy trying to crash into a vulnerable road user to bother looking and registering a sign.

I can't see Pooptooth blocking even the weakest of signals. It's a few kilowatts, perhaps microwatts.

 

[Milkfloat]

I can't see Pooptooth blocking even the weakest of signals. It's a few kilowatts, perhaps microwatts.

Not blocking in a radio sense, but that fact that the device says that if it detects Bluetooth it won’t trigger the sign, this is to avoid false positives with drivers using hands free legally.