Portable Environmental Noise Monitor 3655

All-weather Case — Type 3655

All-weather Case Type 3655 houses a noise measurement system based on Hand-held Analyzer Types 2250/2250-L/2270.

The case is light and robust, with its contents protected by high-density machined foam inlays. Designed for unattended noise monitoring, the enclosure protects the measurement system from the weather and unauthorised access, while providing power and remote data retrieval.

Battery power for extended measurement durations is provided by two Li-Ion batteries. These lightweight batteries make Type 3655 compact and completely portable. A charger is included in the case for each battery. The chargers can also be used to power the system if mains power is available. Alternatively, external DC power can be used.

A wide variety of optional accessories and measurement modules are available to tailor the system capability to the monitoring task.

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Features of Portable Environmental Noise Monitor 3655


  • Measurements made:
    • Outdoors
    • Unattended
    • In workplaces and on construction sites
    • In remote locations
  • Measurements for:
    • Area planning
    • Noise control
    • Complaint investigation
    • Venue licensing


  • Weather protection to IP 43
  • Easy to carry and transport
  • Tamper protection
  • Hot swap of batteries
  • Flexible power options
  • Type approved to Class 1

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Portable Environmental Noise Monitor 3655

Please fill out the form to request a quote or receive more information about this product. Alternatively, you can call 1.877.295.4095 and we will be able to answer any questions you may have.

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