Radio frequency identification (RFID) readers; radio frequency identification (RFID) tags; radio frequency identification (RFID) credentials, namely, cards and tags, and readers for radio frequency identification credentials; alarm installations and alarms; alarm sensors; alarm panels; alarm bells, electric; radio alarm apparatus; alarm control apparatus; apparatus for collecting by radio frequency; radio frequency mixers; radio-frequency antennas; radio-frequency receivers; radio-frequency components; radio-frequency modulators; radio-frequency transmitter; radio-frequency power meters