Sound meters
Sound level meters and sound calibrators. Data logging and alarm units are available.
email aqua@ecotao.co.za for prices
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Technical
Noise or sound level meters are commonly used in noise pollution studies for the quantification of different kinds of noise, especially for industrial, environmental and aircraft noise.
https://en.wikipedia.org/wiki/Sound_level_meter
Extech 407730: Digital Sound Level Meter
40-130dB Meter featuring large LCD display with analog bargraph
Features:
- ±2dB accuracy with 0.1dB resolution
- A+C weighting
- AC analog output
- Record Max/Min values over time
- Utilizes 0.5″(12.7mm) electret condenser microphone
Extech 407732-KIT: Low/High Range Sound Level Meter Kit
Digital sound level meter with 94dB sound calibrator and carrying case
Features:
- High accuracy meets ANSI and IEC 651 Type 2 standards
- High and Low measuring ranges: 35 to 100dB (low) and 65 to 130dB (high)
- Data Hold and Max Hold functions
- Backlit LCD display to view in dimly lit area
- Includes 407722 – 1kHz 94dB sound calibrator (±5% accuracy)
- Includes plastic carrying case for meter and calibrator
Extech 407732: Low/High Range Sound Level Meter
Dual-range Type 2 digital sound level meter with backlit LCD
Features:
- High accuracy meets ANSI and IEC 651 Type 2 standards
- High and Low measuring ranges: 35 to 100dB (low) and 65 to 130dB (high)
- Data Hold and Max Hold functions
- Backlit LCD display to view in dimly lit area
Extech 407750: Sound Level Meter with PC Interface
Big backlit display, PC interface & background sound absorber
Features:
- Meets ANSI & IEC 651 Type 2 standards
- Background noise absorber for machine noise measurements filters ambient noise
- 30 to 130dB measurement range with ±1.5dB accuracy
- Large display with backlighting and analog bargraph
- MIN/MAX, Auto/Manual Ranging
- Analog AC/DC outputs for connection to a recorder
- RS-232 interface for capturing data directly on a PC
- Tripod mount ideal for field use
Extech 407790A: Real Time Octave Band Analyzer
Type 2 integrating sound level meter with Octave and 1/3 Octave Band real time display
Features:
- Meets ANSI and IEC Type 2 standards
- 160×160 dot matrix backlit LCD displays Leq, LE, Lmax, Lmin, and Lp
- Built-in memory stores up to 12,280 records in SLM mode and 1024 data points in 1/1 or 1/3 octave mode
- Stored data can be easily transferred to a PC via RS-232 interface and analyzed using included software
- A, C, and Flat weighting with Fast/Slow response time
- Real time clock with Year, Month, Day, Hour, Minute, and Second display
- 25Hz to 10kHz frequency response