ENVIRONMENTAL MONITORING
NOISE MONITORING SERIES – NM20 & NM60

NM20 & NM60

Our Noise Monitoring Series combines the power of the NM20 (Noise Sensor) and the NM60 (Noise Hub) to provide a scalable, real-time noise monitoring and alerting system for industrial, manufacturing, and high-noise work environments. 

This integrated system is ideal for large-scale noise management, allowing real-time monitoring, proactive hearing protection enforcement, and seamless expansion as operational needs grow.

PROTECT HEARING

LED VISUAL ALERTS

SCALABLE NOISE MANAGEMENT

MONITORING & REPORTING

CONTINUOUS DB MEASURING

ENVIRONMENTAL MONITORING

NOISE MONITOR SYSTEM

NM-SERIES

NM20

NOISE MONITORING SENSOR

Detect hazardous noise levels with continuous measurement of ambient noise levels and provides local visual alerts to workers.

FEATURES

REAL-TIME, IN-FIELD MONITORING

  • Accurate, real-time, in-field ambient noise monitoring

INSTANT VISUAL ALERTS

  • Local visual alerts after pre-set thresholds are exceeded (flashing red LED headphones alert employee to wear hearing protection0n).

USER-FRIENDLY

  • Customizable warning thresholds

INTEGRATABLE & SCALABLE

  • Functions as stand-alone unit or as part of a broader network when linked to the NM60

    INTEGRATABLE & SCALABLE

    • Optional RS485, relays, and wireless communication for advanced integration

     

      SENSING CAPABILITIES
      • Customizable Db thresholds trigger visual alerts
      • Equivalent Continuous A-weighted Sound Pressure Level (LAeq) measurement

      • Time-Weighted Average (TWA) over 8-hour shifts (optional models)

      TECHNICAL SPECIFICATIONS
      • Power Supply: 115/230 VAC (standard); 9–24 VDC for Intrinsic Safe model

      • Power Consumption: Typical 3W, Maximum 5W

      • Communication Options (for NM20 with comms model):

        • RS485 Modbus RTU

        • Wireless communication to Gateway (up to 500m range)

      • Relay Contacts: Up to 250 VAC / 30 VDC, 6 A

      • Measurement Units: Decibels (dB)

      • Compliance: Refer to Certification Documents

      • Warranty: 1-year warranty with 12-month service life (6 months in harsh environments)

      COMPLIANCE & WARRANTY
      • Intrinsically Safe model available (NM20 – ExiA)

      • Complies with occupational health and safety standards for industrial noise exposure

      • Certification documents available upon request

      • Warranty: 1 year warranty with 12-month service life (6 months in harsh environments)

      INDUSTRY APPLICATION

      NM60

      CENTRAL MONITORING HUB

      The NM60 acts as the primary tracking point of all connected NM20 sensors, processing real-time noise levels from the connected NM20 sensors into visual alerts.

      OVERVIEW

      The NM60 functions as a central noise monitoring hub that aggregates real-time data from up to 10 x NM20 Sensors simultaneously via wireless communication (up to 100 meters per sensor), providing a central visual warning point for employees before they enter high-noise zones, such as workshops, plants, or large production areas.

      • Central Noise Tracking & Display:

        • Primary point for real-time noise level tracking, reporting, and system-wide awareness from all connected NM20 sensors.

        • Positioned at access points of large areas to warn employees of high noise levels before they enter.
      FEATURES

      REAL-TIME ALERTS

      • Real-time visual warning for excessive noise levels
      • Flashing red headphone symbol prompts workers to wear hearing protection

      WIRELESS, SCALABLE, CUSTOMIZABLE

      • Supports comprehensive noise monitoring across large areas
      • Customizable noise level warning thresholds
      • Wireless connection for up to 10x NM20 sensors within a 100m radius
      • 2x built-in relays for triggering external devices or alarms
      • 8-hour Time-Weighted Average (TWA) capability 
        SENSING CAPABILITIES
        • Customizable Db thresholds trigger visual alerts
        • Capable of supporting wireless sensor networks for noise mapping
          TECHNICAL SPECIFICATIONS
          • Power Supply: 115/230 VAC
          • Wireless Sensor Connectivity: Up to 100 meters
          • Visual Indicator: Flashing red headphones
          • Relay Outputs: 2x built-in relays
          • Measurement Units: Decibels (dB)
            COMPLIANCE & WARRANTY
            • Intrinsically Safe model available (NM20 – ExiA)

            • Complies with occupational health and safety standards for industrial noise exposure

            • Certification documents available upon request

            • Warranty: 1 year warranty with 12-month service life (6 months in harsh environments)

            INDUSTRY APPLICATION

            NM-SERIES SETUP

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