Alarm Clock using Bolt Wifi Module and Integromat

I have done alarm clock with the help of Integromat. But the sound produced by the buzzer is too low. How can I increase the sound?

If you are using a resistor in series with the buzzer, try removing it or use a low resistance value.

It’s simple as it is for increasing the sound you have to use another buzzer which will be louder than the provided buzzer.