SECURE RF 카운트다운 타이머 SIR 321 사용 설명서
SIR 321 RF Countdown Timer Part Number BGX501-867-R06 Installation and User Instructions SIR 321 SIR 321 is a Z-Wave Plus(TM)certified countdown timer that can be used to control immersion heater elements or other electrical appliances rated up to 3 kW.…