มีของพร้อมจัดส่งภายใน 7-10 วันทำการ (In stock for delivery within 7-10 working days)
Sound modules have continuous and pulsing tones. Maximum sound output is 103 dB at 1 m (3.3 ft). A reduced volume setting is available by changing the position of the volume DIP switch, which produces a sound output of 88 dB(A) at 1 m (3.