SLM-389 Wall Hanging Sound Level Meter 13" HD Screen Decibel Meter with Data Logger Function Audio and Visual Alarm

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Introducing the Digital Sound Level Meter featuring a vibrant 13" HD screen display. Equipped with a data logging function, facilitating seamless data retrieval through real-time PC connectivity. It offers the flexibility to set an adjustable upper sound limit complete with both sound and light alarms, further enhanced by the option to customize alarm duration. Additionally, the meter includes an alarm output interface that can be easily linked to an external speaker. With its A-weighting and wide measurement range from 30 to 130dB, this sound level meter stands as a comprehensive solution for precise sound monitoring.


  • 13" HD wide-screen display
  • Wide measurement range with data logging
  • Adjustable alarm threshold
  • Sound and light alarm when over limit (built-in buzzer)
  • Adjustable alarm duration
  • With an external alarm output interface
  • Six analog bar level indication
    • Six grid in red: 106~130dB
    • Five grid in red: 91~105dB
    • Four grid in red: 76~90dB
    • Three grid in green: 61~75dB
    • Two grid in green: 46~60dB
    • One grid in green: 30~45dB
  • Data logging every 2s and can be stored for one year
  • Wall mount / Hang / table top (with hidden bracket) / or attached to a tripod (note the tripod is not included in the set)
  • With data records download and real-time PC connection function through USB; export and print data sheet and charts (Note to buyer(s): PC software is suitable only for Win7, Win8, Win10, and Win 11 64-bit)
  • Factory calibrated


  • Measurement range: 30~130dB
  • Accuracy: ±1.5dB (sound pressure reference, 94dB@1KHz)
  • Resolution: 0.1dB (<10dB); 1dB (>100dB)
  • Frequency weighting: A weighting
  • Frequency response: 31.5Hz~8.5KHz
  • Sampling rate: 2 times/s
  • Time weighting: FAST, 0.5s
  • Sensor: 6mm condenser microphone sensor
  • Test probe: 5m long
  • Display: LED digital tube, single character 4" inches
  • Alarm output: 12V high level
  • Alarm alert: Sound and Light
  • Power supply: DC 5V / 1A
  • Dimension: 323 x 173 x 40mm
  • Weight: approx. 980gms

Set includes:

  • 1 x Sound Level Meter
  • 1 x USB power cable
  • 2 x Wall mount screw
  • 2 x Hanging hook
  • English Instruction Manual
  • Standard Factory Packaging

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