World's first Noise Monitor
with a MEMS microphone
Life-time warranty on the MEMS microphone and 3-year warranty for hardware
The use of MEMS microphones in NMT ensures that parameters such as linear operating range, frequency response, directional response, and temperature operating range are conformed to IEC 61672-1 (PTB Type Approval)
Long-term stability is ensured by the dynamic system check based on the real acoustic signal measured. The dynamic system check works remotely and uses a continuous comparison of microphones’ sensitivity
In addition to the dynamic system check the acoustic signal source can be used for remote offline microphone testing (e.g. with a 100 dB level)
The use of MEMS microphones ensures a great immunity to radio frequency interference (RFI) and electromagnetic interference (EMI) and environmental resiliency. This resiliency to varying environmental conditions is particularly important for long-term acoustic monitoring applications in the harsh sub-zero winters and hot and humid summers. The noise monitor based on MEMS operating temperature range is specified from (−20 °C) to +60 °C
Noise monitoring based on MEMS microphones is very easy to integrate with other environmental monitoring systems at a low cost, e.g. easy integration of a weather monitoring module and dust monitor
