electric or electronic sensors; monitoring apparatus, other than for medical purposes; switches, electric; infrared detectors; infrared sensors; monitoring instruments; motion detectors; flashing lights [luminous signals]; sensors; camcorders; alarms; security alarms; radios; signal lanterns; diagnostic apparatus, not for medical purposes; radar apparatus; motion sensors for use in commercial and home security alarm systems; transmitters of electronic signals; wearable activity trackers; baby monitors