Sound Level Meter (DSM402SD) with SD Card Real Time Data Logger

• Real time SD memory card Datalogger with Built-in Clock and Calendar, real time data recorder
• Programmable sampling time from 1 second to 3600 seconds (also supports manual logging and changing of data storage location)
• Big easy to read (2.5" diagonal) green backlit LCD
• Makes measurements in auto ranging mode or within a manually settable range
• Displays maximum and minimum readings and holds any reading
• Auto power off function (can be disabled)

Specifications :

• Display: 2.05" x 1.5" (52 x 38mm) LCD
• Microphone Electric condenser microphone
• Frequency Range: 31.5Hz to 16kHz
• Measurement Range:
  • 30 to 130dB in auto ranging mode
  • User can also select fixed range of
    • 30 to 80dB
    • 50 to 100dB
    • 80 to 130dB
• Measurement Weighting:
  • By frequency: frequency weighing uses A or C standard
  • By time (using Class 2 IEC1010 standard): fast or slow (200ms or 500ms response time)
• Measurement Accuracy (with “A” frequency weighting): ± 2.0dB @ 31.5Hz, 1.5dB @ 63Hz, 1.5dB @ 125Hz, 1.4dB @ 250Hz, 1.4dB @ 500Hz, 1.1dB @ 1kHz, 1.6dB @ 2kHz, 1.6dB @ 4 kHz, +2.1 dB and -3.1dB @ 8kHz; +3.0dB and -6.0dB @ 12.5kHz, +3.5dB and -17.0dB @ 16kHz
• Data Logging Sampling Time: 1 second to 1 hour
• Programmable Parameters: Date, time, auto power off, beep sound, sampling time, decimal point or comma decimal division, “A” or “C” frequency weighting, fast or slow time weighting
• Storable/Recallable Readings: Maximum, minimum
• SD card capacity: 1 GB to 16 GB
• Operating Temperature: 32° to 122°F (0° to 50°C)
• Operating Relative Humidity: 0 to 85%
• Dimensions: 9.65" x 2.68" x 1.77" (245 x 68 x 45mm)
• Weight: 1.08 lb. (489g)
• Power Source: 6 AA batteries or optional 9vDC AC adapter

Supplied with:

• Hard carrying case
• Sound wind shield ball
• 2 GB SD memory card
• Users manual
• 1 Year Limited Manufacturers Warranty