ATP ET-958 Precision Data Logging Sound Level Meter

ATP ET-958 Precision Data Logging Sound Level Meter

ATP ET-958 Precision Data Logging Sound Level Meter is designed for professional sound measurement where reliable readings and recorded data are important. It complies with IEC 61672-1 Class 2 and provides ±1.4dB accuracy at 94dB and 1kHz. A ½-inch electret condenser microphone supports clear and consistent sound capture across a frequency range of 31.5Hz to 8kHz.

Users can select A or C frequency weighting and choose either Fast or Slow time weighting to suit different noise conditions. Four measurement ranges cover 30 to 80dB, 50 to 100dB, 80 to 130dB and an automatic 30 to 130dB range. The 55mm backlit LCD also includes an analogue-style bar graph, making readings easier to view in changing light conditions.

For longer surveys, the ATP ET-958 Precision Data Logging Sound Level Meter can store up to 32,600 readings in its internal memory. Sampling can be adjusted from 1 second to 10 hours, while the integrated USB interface supports data transfer to a PC for review and analysis. Practical features such as Min, Max and Peak measurement functions, a low battery warning, auto power off and a standard 4mm tripod mounting point support regular professional use.

Key Benefits

• Records up to 32,600 readings for extended noise surveys and later review.
• Adjustable sampling from 1 second to 10 hours supports short tests and longer monitoring periods.
• A and C frequency weighting allow the meter to be set for different sound assessment needs.
• Fast and Slow response settings provide control over how changing sound levels are measured.
• USB connectivity allows logged information to be transferred directly to a PC.
• The backlit 55mm LCD improves reading visibility, including in lower light.
• Min, Max and Peak functions help users review changing or peak sound levels.
• A low battery warning and automatic power off support dependable day-to-day operation.
• The standard 4mm tripod mounting point allows the meter to be positioned for longer monitoring tasks.

Common Applications

ATP ET-958 Precision Data Logging Sound Level Meter is suitable for a range of testing, maintenance and inspection tasks, including:

• Workplace sound level monitoring
• Health and safety noise assessment
• Environmental sound monitoring
• Routine professional noise measurement
• Investigative noise monitoring
• Long-term sound level surveys
• Recording sound levels for later review
• Sound monitoring for reporting purposes

Why Choose This Model?

The ATP ET-958 combines IEC 61672-1 Class 2 performance with internal data logging, adjustable sampling, USB data transfer and selectable A/C and Fast/Slow settings. It is a focused choice for professional users who need both direct sound measurement and the ability to record readings over time.

General Specifications

Measurement and Accuracy Specifications

Mechanical and General Information

Specification Notes

• The stated ±1.4dB accuracy applies at 94dB and 1kHz.
• The meter offers three manual ranges plus a 30 to 130dB automatic range.
• Sampling intervals can be set from 1 second up to 10 hours for data logging.

What’s Included

• ATP ET-958 Precision Data Logging Sound Level Meter
• Hard carry case
• Wind muffler
• USB cable approximately 1 metre
• Software
• AC DC mains power adapter
• 3.5mm earphone plug
• 1 x 9V battery