Piezo alarm fast pulse 43x33mm 

Short Description: 43*20mm, 12VDC, 100dB, 2900hz, fast pulse tone, screw type,Piezo alarm Electrical Specifications:        Type   Unit EPI-43B2912PF     Rated Voltage VDC 12     Operating Voltage  VDC 3~20 *  Rated Current (Max)  mA 20 *  Min sound output at 30cm  dB 100 *  Resonant Frequency  Hz 2900±500Hz    Tone nature     Fast pulse    Operating Temperature ℃ -20 ~ +60…