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Passive Buzzer Alarm Module
Passive Buzzer Alarm Module
Information 1, onboard passive buzzer 2, onboard 8550 transistor drive 3, active low, directly control IO MCU 4, working voltage: 5V 5, board size: 22
         $1.02

Passive Buzzer Module Sound Module
Passive Buzzer Module Sound Module
Description 1 module adopts 9012 transistor drive 2 working voltage 3.3V-5V 3 provided with fixing bolt holes, easy to install 4 PCB size: 3.3cm * 1.3cm Interfa
         $0.79

Active Buzzer Drive Module for Smart Car
Active Buzzer Drive Module for Smart Car
Description 1 used for 9012 transistor drive 2 working voltage: 3.3V-5V. 3 provided with fixing bolt holes, convenient installation 4 PCB size: 2.8 * 1.3 cm Int
         $0.79

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