This is the POM-2735P-R microphone which can be used to monitor environmental noise. It is an omnidirectional microphone with an almost flat response in the entire frequency range of human hearing — between 20Hz and 20kHz.
- Sensitivity: -35dB ±4dB
- Impedance: Less than 2.2kΩ
- Frequency: 20Hz to 20kHz
- Supply voltage: +3V standard; +10V maximum
- Current Consumption: 0.5mA maximum
- Sensitivity Reduction: -3dB @ 1.5V
- Maximum Sound Pressure: 114.5 ±10 dBSPL, approximately
- Signal-to-Noise Ratio: 60 dB
Compatible with Waspmote This sensor can be used in a Waspmote wireless sensor platform by plugging it into the Waspmote Smart Cities Sensor Board. It is highly recommended to purchase this microphone at the same time as a Waspmote and a Smart Cities board! The sensor requires calibration on the system with which it is to be used.
When you purchase this microphone with a Waspmote and a Smart Cities board, it will arrive pre-calibrated to return an output in the range of 50dBA and 100dBA with an accuracy of ±2.5dBA. The calibration data will be stored in the Waspmote microcontroller's EEPROM between addesses 164 and 185, so make sure you do not overwrite those memory positions!