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Optical Fingerprint Reader Sensor Module For Ar Duino 2560 R3 Raspberry Pi ESP8266 ESP32 51 Avr STM32 Red Light Dc 3.8-7V

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Optical Fingerprint Reader Sensor Module For Ar Duino 2560 R3 Raspberry Pi ESP8266 ESP32 51 Avr STM32 Red Light Dc 3.8-7V

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Optical Fingerprint Reader Sensor Module for Ar Duino 2560 R3 Raspberry Pi ESP8266 ESP32 51 AVR STM…

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Optical Fingerprint Reader Sensor Module For Ar Duino 2560 R3 Raspberry Pi ESP8266 ESP32 51 Avr STM32 Red Light Dc 3.8-7V

Optical Fingerprint Reader Sensor Module for Ar Duino 2560 R3 Raspberry Pi ESP8266 ESP32 51 AVR STM32 Red Light DC 3.8-7V