Quest™ SoundPro™ SE-DL Series Sound Level Meters and Real-Time Analyzers help provide advanced sound level monitoring and comprehensive data analysis. Instruments are available in Class/Type 1 and Class/Type 2 models. A large screen display allows for real-time frequency analysis and data-storing capabilities make it easy to post-process and evaluate workplace noise levels.

• ANSI and IEC standards compliant
• Available in Class/Type 1 Precisions or Class/Type 2 General Purpose models
• Two “virtual” sound level meters running simultaneously
• Concurrent A-weighted and C-weighted measurements
• Programmable and level-triggered start and stop
• A, C and Z (flat) frequency weighting
• Fast, slow, and IEC impulse time response
• Selectable thresholds 10 dB – 140 dB
• 3, 4, 5, 6 dB exchange rates
• Luminescent keypad and backlit display
• SD memory card slot
• USB communications port and serial RS-232 output
• Display adjustable among multiple languages
• Time history data logging with 1 second to 60 minute intervals (DL only)
• Back erase function
• Noise dose calculation/dosimetry function