Triplett SoniChek PRO 3550 Professional Sound Level Meter - 30-130 dB


The Triplett SoniChek™ PRO is a professional sound level meter designed to be used in industrial applications where ANSI standards are called for. This highly accurate meter was designed according to IEC651 (Type 2) and ANSI S1.4 (Type 2) standards and with its large backlit display, A/C weighting and 3 year warranty makes it the perfect choice for any installer. Overall, the SoniChek™ PRO is well suited for a variety of commercial and residential applications such as fire alarm, home theater, plant maintenance, HVAC installations and more!


  • A/C weighted measurement reads 30 to 130 dB
  • Frequency range: 31.5 Hz to 8 kHz
  • Accuracy: ± 1.5 dB (94 dB @ 1 kHz)
  • Designed according to IEC651 (Type 2) and ANSI S1.4 (Type 2)7341; standards
  • Min/Max hold
  • Automatic backlit display
  • Selectable FAST or SLOW read delay
  • Segmented bar graph
  • 3 year limited warranty
  • Includes: Case, USB cable, AC/DC output leads and batteries
    (4 – AA)
More Information
Manufacturer Triplett
Range 30-130 dB
Type Sound Level Meters
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