สินค้าหมดชั่วคราว (Temporarily out of stock) ไม่พร้อมจำหน่าย
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.