Baby activity monitor

Back up alarm system

Back up alarm system

Bag alarm device

Bag including an encodable device responsive to remote...

Balanced field metal detector

Ball and socket and test board arrangement

Barking dog sound alarm system

Barrier movement arrangement human interface method and...

Barrier movement operator human interface method and apparatus

Barrier operator system and method using wireless...

Base loop code transmitter

Base station for a contactless interrogation system...

Base station system and method for monitoring travel of...

Battery casing for a paging receiver

Battery condition monitoring method and apparatus

Battery module transceiver for extending the range of an...

Battery powered smoke detector

Battery rating indicator

Beacon for electric cable lines or suchlike products