Alarm installations and alarms; microwave radar detectors; passive infrared detectors; external microwave frequency barriers comprising microwave receivers and microwave transmitters; electronic locks and control devices for electronic locks; telephone transmitters; point-to-point transmitters/receivers; electronic external and internal self-protected alarms; power supply devices for battery chargers; calendar software; micro electric contacts; fire-detectors; fire warning devices, namely, fire alarms, smoke detectors, heat detectors, alarm pull stations, audible and visible notification appliances, strobes, sirens, bells, horns, and speakers; special electric cables; batteries; audio and video recorders and audio and video recording and reproduction apparatus; electric and electronic video surveillance installations; intercoms; video intercoms; and anti-theft warning apparatus, namely, theft alarms, electrical alarms for protection against theft and magnifying peepholes for doors