The KY-037 is a high-sensitivity sound detection sensor module featuring an electret condenser microphone and an LM393 comparator, ideal for Arduino and other microcontroller projects requiring audio input.

Operating Voltage: 3.3V to 5V DC Microphone Type: Electret Condenser Microphone (ECM) Output Signals: Analog (AO) and Digital (DO) Comparator Chip: LM393 Current Consumption: Low (typically <20mA) Dimensions: Approximately 32mm x 17mm (varies by manufacturer) Mounting: 3mm screw hole Operating Temperature: -40°C to 85°C (typical for electronic modules) Response Time: Fast (depends on threshold setting) Compatibility: Arduino, ESP32, Raspberry Pi, and other microcontrollers

