SLM-390 Decibel Meter with Data Logging function and A / C / Z Weighted Sound Meter Portable SPL Meter MAX/MIN/AVG, Data Hold Use for Home, Factory, Noisy Neighbor

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Introducing the advanced digital sound level meter with a wide measuring range of 30 to 130 dB. This versatile instrument offers A, C, and Z frequency weighting options, allowing for precise sound characterization in various scenarios. The FAST and SLOW time-weighted settings further enhance its adaptability to different environments.

Equipped with a data logging function, this sound level meter empowers you to capture and store measurements over time, providing valuable insights into sound variations and trends. Additionally, the real-time PC connection feature enables seamless data transfer for further analysis. You can effortlessly download and print the collected data, making it convenient to share or document your findings.


  • Wide measurement range
  • A/C/Z Frequency weighting and FAST/SLOW Time-Weighted options
  • Data hold and Max/Min/Avg measurement functions
  • Data record download and real-time PC connection function (PC software compatible with Windows 7, 8, 10, and 11-with 64 bits OS)
  • Adjustable upper and lower limits
  • Buzzer and light alarm when exceeding the set limit
  • Analog bar scale and low battery indication function
  • Auto power off with disable function


  • Microphone: High precision 1/2 inch microphone
  • Range: 30~130dB
  • Measuring Level: 30~70dB, 60~90dB, 80~110dB, 100~130dB
  • Resolution: 0.1dB
  • Accuracy: ±1.5dB (sound pressure reference, 94dB@1KHz)
  • Frequency weighting: A/C/Z weighting
  • Time weighting:
    • Fast: 0.125s
    • Slow: 1s
  • Sampling rate: 2 times/s
  • Frequency response: 31.5Hz~8kHz
  • Analog bar: One scale represents 1dB
  • Display: 4 digits, max 1999
  • Ambient temperature:
    • Range: 0~60°C
    • Accuracy: ±2°C
  • Over range: "OVER~HI", "UNDER~LO"
  • Datalogger: 1999 groups
  • Record interval adjustment: 9 levels (1s, 5s, 10s, 30s, 1min, 30min, 1h, 12h, 24h)
  • Synchronous update: Refer to PC information for program update
  • Auto Power off: 15min (can be canceled)
  • Power supply: 3 x 1.5V AAA battery or USB micro interface 5V
  • Weight: approx. 215gms
  • Dimension: 229 x 70 x 35mm

Set Includes:

  • 1 x Sound Level Meter
  • 1 x USB cable (power supply and pc connection)
  • 3 x 1.5V AAA battery
  • Carrying Pouch
  • English Instruction Manual
  • Standard factory Packaging

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