EXTECH SL130G Sound Level Monitor Data Logger, 30-130 dB, USB, A/C Weighting

Workplace noise regulations and community disturbance complaints demand reliable, documented sound level measurements. The EXTECH SL130G Sound Level Monitor answers this need by continuously logging decibel levels with precision, ensuring you have defensible data for compliance, safety audits, or noise nuisance investigations.

Who is it for

Safety officers, industrial hygienists, environmental consultants, and facility managers who must monitor and record noise exposure over time. It is equally valuable for event organizers, municipal authorities, and anyone needing unattended, long-term sound level data collection without a dedicated operator.

Main features

• Wide measurement range from 30 to 130 dB with 0.1 dB resolution and ±1.4 dB accuracy for dependable readings.
• User-selectable A or C frequency weighting and Fast or Slow time weighting to match regulatory standards and application needs.
• Massive internal memory stores up to 129,920 readings, enabling weeks of continuous logging at common intervals.
• Flexible sampling rate from 50 ms to 24 hours lets you capture transient events or long-term trends with optimal battery life.
• USB interface and Windows-compatible software allow easy setup, data download, and export to CSV or Excel for analysis and reporting.
• Complies with ANSI S1.4 Type 2 and IEC 61672-1 Class 2 standards, ensuring measurements are accepted by authorities.
• Powered by an included 3.6V lithium battery, with a tripod mount for stable, hands-free placement in the field.

Specifications

• Measurement range: 30 to 130 dB
• Accuracy: ±1.4 dB
• Frequency range: 31.5 Hz to 8 kHz
• Resolution: 0.1 dB
• Frequency weighting: A and C
• Time weighting: Fast and Slow
• Microphone: 1/2" electret condenser
• Data logging capacity: 129,920 readings
• Sampling rate: 50 ms to 24 hours (user selectable)
• Interface: USB
• Software compatibility: Windows
• Power source: 3.6V lithium battery (included)
• Standards: ANSI S1.4 Type 2, IEC 61672-1 Class 2
• Operating temperature: 0 to 40°C (32 to 104°F)
• Storage temperature: -10 to 60°C (14 to 140°F)
• Tripod mount: 1/4"-20
• Data output format: CSV, Excel

Tips

For long-term monitoring, select a sampling interval of 1 minute or longer to maximize battery life and memory capacity. Always calibrate the unit before critical measurements using an acoustic calibrator. Position the logger away from reflective surfaces and at ear height in the monitored area for representative readings.