As used in KRS 95A.400 to 95A.440: (1) "Automated external defibrillator" has the same meaning as in KRS 311.666; (2) "Gas monitor" means a portable device that detects and measures the concentration of one (1) or more gases, and includes four (4) gas monitors and multi-gas monitors; (3) "Technical device" means an: (a) Automated external defibrillator; (b) Gas monitor; or (c) Thermal vision device; and (4) "Thermal vision device" means any portable electronic device that displays a visible image from the infrared portion of the electromagnetic spectrum.