Sound Sensor Module GSM This means that your microcontroller

This means that your microcontroller / Arduino can talk to internet (send or recieve wirelessly)

the DS18B20 can derive power directly from the data line ("parasite power")

It is part of the E6C2 series

Bluetooth 4

Insulated resistance >10MΩ(500V)

Sound Sensor Module GSM This means that your microcontrollerThis sound sensor can identify the presence of sound. The sensor sensitivity can be adjusted by potentiometer. The sound sensor module work like that: when the intensity of the sound can not reach set threshold, the OUT pin will output high level 5 volt ( open ). When the intensity of the sound reach more than the set threshold, the OUT pin will output low level (2. 5 volt). supply voltage range: 3. 3V 5. 3V Comparator IC: LM393 Mic type : capacitive