PORTABLE SOUND LEVEL METER, Model: NSM-136

Model: NSM-136

Features:

  • The NSM-136 sound level meter fully complies with the latest IEC 61672-1:2013 Class 2 standard.
  • Integrates intelligent algorithms with a wide measurement range of 30–130 dB, suitable for industrial environments and demanding public applications.
  • Measures and displays Leq (equivalent continuous sound level), including both real-time and selected time interval sound levels.
  • Connects to a datacase and thermal printer for saving and printing measurement results.
  • Features an OLED screen displaying measurement results in Vietnamese, making it easy to use for both operators and test subjects.
  • Printed results include full information in Vietnamese: date and time, measurement results, unit, location, and more.
  • The printer is separate from the meter, allowing convenient maintenance, easy replacement, reduced costs, and extended usage time.

Specifications: 

NSM-136 Sound Level Meter:

  • Measurement range: 30 – 130 dB
  • Frequency range: 20 Hz – 12.5 kHz
  • Accuracy: ±1 dB
  • Measuring speed: 0.4 seconds
  • Display resolution: 0.1 dB
  • Display: 128 × 64 OLED
  • Control buttons: 7 buttons
  • Language: Vietnamese, English
  • Power supply: 4 × 1.5V AAA batteries
  • Main measurement parameters: LFp, LSp, LIp, Leq, t, Lpeak, Leq, T, LFmax, LFmin, LSmax, LSmin, LImax, LImin, SEL, Ts, Tm, Volt, E
  • Dimensions (H × W × D): 210 × 65 × 27 mm
  • Weight: 0.25 kg
  • Operating temperature: -20°C to 60°C
  • Humidity: 5% to 95%

Datacase (Storage & Printing Unit):

  • LCD display: 16 × 2 characters
  • Dimensions: 65 × 15 mm
  • Keyboard: 6 buttons
  • Printer: High-speed thermal printer (30 mm/s), 58 mm paper size
  • Printout includes:
    • Unit logo and name
    • Meter serial number
    • Measurement results
    • Date and time
    • User information (full name, organization, signature)
    • Location
  • Power supply: NiMH 7.4V DC
  • Dimensions (H × W × D): 340 × 270 × 100 mm
  • Operating temperature: -20°C to 60°C
  • Humidity: 5% to 95%
  • Protection rating: IP67 (dustproof and waterproof)

In the Box: 

  • 01 NSM-136 Sound Level Meter
  • 01 Microphone
  • 01 Windshield
  • 01 Datacase (for data storage and printing)
  • 01 Battery Charger for Datacase
  • 03 Thermal Paper Rolls
  • 01 User Manual