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

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.

3550-NIST Comes with Certificate of traceability to NIST Standards 
Please add 11 business days lead-time for the NIST calibration process

CATEGORY: SOUND LEVEL METER

• 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.

• 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)

Datasheet

User Manual

Q: I've noticed most ear plugs, including ones I'm considering, are rated at dB32. What is a typical and safe dB level for the human ear? When would I need to use earplugs with a dB32 rating?

A: Noise levels above 70 dB over extended periods can start to damage hearing. Extremely loud noises, surpassing 120 dB, can cause immediate damage. The dB32 rating of earplugs indicates the amount of noise reduction they provide. For specific applications of your earplugs or hearing protection, it's best to consult with the manufacturer directly. It's worth noting that OSHA mandates employers to initiate a hearing conservation program when noise exposure reaches or exceeds 85 decibels averaged over an 8-hour workday, known as the 8-hour time-weighted average (TWA).