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SoniChek™ Pro Professional Compact Sound Level Meter: Reads 30 to 130dBr, 31.5Hz to 8kHz Frequency Range - (3550)

SKU 3550
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Introducton to Triplett SoniChek™ Pro Sound Meter

6 14395 00173 5

The Triplett 3550 SoniChek PRO Professional Sound Level Meter 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. Its large backlit display and A/C weighting make it an ideal 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.


  • Designed according to IEC651 (Type 2) and ANSI S1.4 (Type 2) standards with an accuracy: ± 1.5dB (94dB @ 1kHz)
  • A/C weighted measurement with fast/slow response reads 30 to 130dB and has a frequency range of 31.5Hz to 8kHz
  • AC/DC analog output
  • Analog bargraph, Max hold, and Tripod mount
  • Lead time for NIST Certified products is 5-7 business days
  • Upon order placement, please provide the company name that should appear on the certificate.  Without this information, we will not be able to provide a certificate of calibration.
Measurement Range 30 to 130dB
Accuracy ±1.5dB (94dB@1kHz)
Resolution 0.1dB
Frequency Range 31.5Hz to 8kHz
Weighting A and C
Response Time Fast (125ms)/Slow (1s)
Analog Output AC and DC
Power (4) AA batteries or USB
Dimensions 9.6 x 2.8 x 1.8" (245 x 70 x 45mm)
Weight 8.5oz. (240g)
  • SoniChek PRO Professional Sound Level Meter (3550) (1)
  • Set of AC/DC Output Leads (1)
  • AA Batteries (4)
  • USB Cable (1)
  • Soft Carrying Case (1)
  • Instruction Manual (1)

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