DID

Electrical and scientific apparatus, namely, digital data recorders, namely, magnetic, electronic and optical recorders; digital voice recorders, namely magnetic, electronic and optical digital voice recorders; digital storage devices, namely, blank magnetic, electronic and optical tapes, discs and cards; personal digital assistants; digital data readers, namely, magnetic, electronic and optical digital data readers; personal locator systems, namely, beepers and global positioning systems consisting of computers, computer software, transmitters, receivers and network interface devices; personal security alarm systems, namely, personal security alarms; and building security alarm systems, namely, burglar alarms.