Pedometers; Scales; Weighing machines; Weighing apparatus and instruments; Weighbridges; Branch boxes (electricity); Radios; Radar apparatus; Rods (surveying instruments); Hygrometers; Thermometers, not for medical purposes; Probes for scientific purposes; Ultrasonic sensors, other than for medical use; Transducer devices for converting incident ultrasonic signals to electrical signals; Acoustic alarms; Electric buzzers; Fire detectors; Smoke detectors; Metal detectors; Magnetic metal detector monitors; Metal detectors for industrial or military purposes; Metal detectors for screening personnel; Thermostats; Burglar alarm apparatus (other than for vehicles)