The MK:427 Noise Sensor is an outdoor noise measurement instrument that has been specifically designed for integration with other data logging and monitoring systems.

Unlike a conventional Sound Level Meter, the MK:427 Noise Sensor converts the noise level in decibels into an industry standard 4-20mA output which can be connected to standard DCS/SCADA based systems to add a noise measurement capability.

The analogue electronics are highly reliable and operate without any user intervention. No specialist acoustic knowledge is required – simply power-up the Noise Sensor and the measured noise level is continuously fed to the output.

The industry standard 4-20mA output allows very long cable lengths to be used without reducing the accuracy of noise levels, making the MK:427 Noise Sensor ideal for systems integration.

Many industrial plants have a variety of process sensors strategically placed around their site so that safety, environmental impact and efficiency can be monitored and managed, in real time, from one or more control rooms.

• The Cirrus Environmental Noise Sensor can be connected with unparalleled ease to such a system sending out continuous live data.

• Robust, fully weather protected Class 1 outdoor microphone

• Straight forward integration with Industry standard 4-20mA current loop systems

• Eliminates the need for third party software

• 30 to 100dB(A) standard range ideal for most applications (other options available)

• Proven long term reliability in harsh outdoor environments

• Verification through regular scheduling for remote calibration using integrated electrostatic actuation system

• Outdoor Windshield and bird spikes to protect the microphone

• Entire length of the MK:427 NoiseSensor is 1m

• Simple mounting and installation for quick deployment

• IP65 rating for long-term outdoor noise measurements