Extech SL400 Noise Dosimeter
The Extech SL400 Noise Dosimeter provides reliable, long-term noise exposure tracking in workplace settings. Designed for professional use, it is compact and clips directly to clothing for ease of wear. The unit performs real-time noise assessments while ensuring compliance with occupational safety standards like OSHA, MSHA and ISO.
With its versatile operation, the Extech SL400 operates as both a dosimeter and a standard sound level meter. The internal memory holds up to 999,999 readings, and sampling intervals are flexible from 1 second to 24 hours. Users can configure the measurement setup for Leq, MIN/MAX, SEL and peak sound level analysis.
Flexible Configuration and Logging
The Extech SL400 allows users to set the criterion level, exchange rate and threshold, providing detailed control over noise survey parameters. It measures time-weighted average exposure, frequency-weighted sound levels, and peak (C, Z) levels. These features make it ideal for workplace assessments and compliance logging.
PC Connectivity and Easy Use
After measurement, data is retrieved via USB and analysed with the included software. Users can review, export or print reports directly from their PC. The Extech SL400 offers high performance in a portable format, simplifying complex monitoring tasks with accuracy and efficiency.
Key Features
- Measures up to 199,900 Lux and 18,571 Fc
- Bluetooth-enabled for use with the ExView app
- Works with both iOS and Android smartphones
- Supports visual and audio alarms for alerts
- Large backlit LCD screen for clear visibility
- Data hold, max/min and trend display functions
- Wireless reporting with PDF and CSV export
- Captures photos using the connected smart device
- Compact, lightweight and portable design
- Sampling speed of 0.5 seconds for fast readings
