Alarm sensors; Alarms for the detection of inflammable gases; Biometric fingerprint door locks; Electric door bells; Electrical wiring devices in the nature of switches incorporating tactile instructions and/or warnings for use by the blind; Electronic touch sensitive switches; Leak detecting device for water supplied home appliances consisting of water sensor, control unit with audible alarm and water valves; Video cameras; Water treatment equipment, namely, fertilizer injection units, namel...