IP65 SPEAKER, 89DB SENSITIVITY,
IP65 SPEAKER, 86DB SENSITIVITY,
MIC COND ANALOG OMNI
SPEAKER,83DB SENSITIVITY, 40MM D
AUDIO PIEZO INDICATOR 2-5V
AUDIO PIEZO INDICATOR 3-20V
SPEAKER, 85DB SENSITIVITY, 30MM
PIEZO BUZZER 12V 80DB 2900HZ 43M