Frequency captor 4 kHz

Hi,
I have a Arduino project. I have to detect a water leak with an arduino Sound sensor. I'd like to use an ESP8266 with WIFI. I used a microphone KY038 but he was to sensitive. I have to hear frequencies of 4 kHz. Do you know a sensor or microphone able to work with 4kHz frequencies ?
Thank you
Regards

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