Sound level meter LUTRON MSL-388SD

Product detailed description

MSL-388SD – Class 2 Sound Level Meter with Real-Time SD Card Datalogging

The MSL-388SD is a professional-grade sound level meter compliant with IEC 61672 Class 2, offering high-accuracy acoustic measurements with real-time datalogging capabilities. Featuring A & C frequency weighting and Fast/Slow time response, it is ideal for environmental noise monitoring, product testing, and quality control.

Key Features:

• IEC 61672 Class 2 compliant for professional use
• A & C Frequency Weighting for versatile acoustic analysis
• Time Weighting: Fast (125 ms) and Slow (1 sec)
• Measurement Ranges: 30–80 dB, 50–100 dB, 80–130 dB or Auto 30–130 dB
• High Accuracy condenser microphone (½" standard)
• Real-time Datalogging to SD card (1–16 GB) in Excel-compatible format
• Manual logging option with single-button capture
• Dot-matrix LCD with green backlight (50 × 30 mm)
• Analog 4–20 mA output for integration into control systems
• USB / RS232 PC Interface for real-time data transfer
• Max/Min memory & Data Hold functions
• Built-in 94 dB calibration key (external calibrators optional)
• Heavy-duty, compact design with intuitive operation

Frequency Response Accuracy (IEC 61672 Class 2):

Data Logging:

• Auto sampling intervals: 5s, 10s, 30s, 1min, 2min, 5min, 10min, 30min, 60min
• Manual mode: single data point via button
• Direct Excel export: plug the SD card into PC – no software needed
• Real-time timestamp: Year/Month/Day Hour:Minute:Second

Measurement Specifications:

• Measurement range: 30–130 dB (Auto/manual ranges)
• Resolution: 0.1 dB
• Microphone: ½" electric condenser microphone (12.7 mm diameter)
• Frequency range: 31.5 Hz to 8,000 Hz

Power & Consumption:

• Power Supply: 6 × AAA (1.5V) batteries or optional 9V AC/DC adapter
• Power usage: ~16 mA (normal), +8 mA with backlight

Physical:

• Dimensions: 132 × 80 × 32 mm (5.2 × 3.1 × 1.3 in)
• Weight: 250 g (0.55 lb, without batteries)
• Operating Temp: 0–50 °C
• Operating Humidity: <85% RH

Included Accessories:

• User manual
• 4–20 mA output plug (SKT-AS385)
• Microphone with clip
• AC to DC 9V adapter

Optional Accessories:

• Sound calibrator (94 dB or 94/114 dB) – SC-941 / SC-942
• Sound wind shield ball – SB-01
• SD memory card (1–16 GB)
• USB cable (USB-01)
• RS232 cable (UPCB-02)
• Data acquisition software (SW-U801-WIN or SW-E802)

Applications:

• Environmental noise assessment
• Industrial noise monitoring and QC
• Product sound testing
• Acoustic research and analysis