ListenEar

The ListenEar Personal Noise Dose Meter is a very compact noise dosimeter to wear during a complete working day.

ListenEar Specifications:

• View instantaneous noise level and total exposure of the day on LCD display
• Use Mobile Phone application to control and view data
• Battery time 160 hours / 4 working weeks
• Charged using USB
• Complies to international standards: IEC 61672-1, IEC 61252
• Two simultaneous dosimeters in one
• Each Dosimeter (in the one unit) can measure DOSE according to pre-set (ISO, OSHA, NIOSH ...) or your custom criteria (Exchange Rate, Level, Threshold) for World standards comparisons, in one time recording session.
• Produce a daily report and stats of the work environment by downloading data
• Default 8 hour day, adjustable in menu
• Tamper proof facility
• Low power radio function - base station mounting
• Bright LED for dose alarm warning
• Contains A,C and Z-weighting filters to mimic the frequencies heard by the human ear
• Built in or (optional) external microphone
• Calibrated during manufacture
• Data logging - Sound / temperature / humidity / movement
• No USB Drivers required to download data
• Class 2 sound level meter
• Includes movement and orientation monitor
• Records Temperature and Relative Humidity

Unique features not found on other dosemeters:

• Anti-Knock & Vibration System:
  A major problem encountered with personal noise dosimeters is distinguishing
  between true audio impulse noise and extraneous mechanical ‘tapping’ on the
  personal noise dosimeter casing. The introduction of a Patented Anti-Knock &
  Vibration System to the ListenEar provides an additional level of accuracy
  to the final result. The ListenEar can detect and eliminate the mechanical
  tapping noise, therefore the noise exposure measured and recorded is an
  actual representation of that environment. Number of detected ‘knocks’ is
  recorded and stored in the report file. The Anti-Knock & Vibration System is
  not active when the External microphone is connected.
• Simulate the effect of wearing ear defenders:
  If you wish to use your ListenEar whilst wearing hearing protection, then this
  is possible by inputting the SNR attenuation figure from the specification of your hearing defender or ear plug into the instrument setup. The ListenEar will take note of the new setting and give exposure readings as if measuring at your ear inside the hearing defender earmuff and not outside in the external environment.
• Motion detection:
  This feature monitors the ListenEar motion status. It will detect if the
  unit is not worn during the recording session. The ‘non motion’ event will
  be detected if the unit is stationary for at least 10 seconds. Number of
  events and summary of ‘no motion’ time is recorded in the report file.

The ListenEar can be controlled by an android application.
The app allows starting and stopping a measurement, displaying the current measurement results and time history graph.

Downloads:

ListenEar Brochure

ListenEar dose warning colours