NSRTW_mk3 with one year access to 24/7 Data Collection
Unfortunately, the NSRTW_mk3-Cloud has been discontinued, check out our other Sound Level Meters for more options.
Wireless sound level meter data logger NSRTW_mk3 with one year access to 24/7 data collection.
-Includes features such as digital MEMS microphone, an accurate date/time clock, a non-volatile 128 Mb recording memory and wireless connectivity.
-24/7 data collection from instruments anywhere in the world. No need for a dedicated server for data collection or emails.
The Wireless Sound Level Meter Data Logger NSRTW_mk3 is the third generation of Convergence Instruments WiFi enabled smart integrating sound-level meters/dataloggers. It includes a digital MEMS microphone, an accurate date/time clock, a non-volatile 128 Mb recording memory and wireless connectivity.
Features:
- Type I precision
- A, C and Z weighting curves.
- Integrating Sound-Level Meter, records L-max, L-min and Leq levels.
- Log interval adjustable from 125 ms (8 points per second) up to hours.
- Individual Manufacturers Certificate of Calibration from Convergence Instrument provided with every instrument purchased.
- WiFi connectivity to report measured levels remotely and automatically at preset intervals.
- Email alerts for sound detected over specified threshold, as well as low-battery.
- Digital very sensitive MEMS microphone (30 dBA typical noise floor)
- Completely sealed weatherproof enclosure designed for outdoors applications. Now includes an ePTFE membrane that seals the microphone against dust and water.
- All-digital design.
- Ultra-stable sensitivity (field recalibration is easily done, but seldom required)
- Very low sensitivity variation due to temperature changes
- Very low sensitivity to vibrations
- Software function calculates global Leq and/or dose, according to ISO and OSHA methods.
- Adjustable response time.
- Preprogrammed recording start date/time.
- Integrated oscilloscope function that can show the acoustic signal in real time.
- Integrated spectral analyzer function that can show the spectrum (or 3rd-octave bands) in real time.
- Can be used as a high-quality USB digital microphone (requires USB Audio Option)
- Allows the observation of recorded levels while the recording is ongoing.
- Works standalone, or USB connected.
- Long life internal rechargeable battery that recharges from USB and most USB chargers.
- Can be field-calibrated.
- Observes and records 100% of the acoustic signal (no missed samples).
- Editable individual custom ID for easier instrument management.
- All settings are stored in non-volatile memory. So the instrument will regain full functionality and WiFi connection from hard-reset or battery loss.
Specifications
- Bandwidth: 20 Hz to 20 kHz
- Microphone Sensor: Digital MEMs
- Precision Class: Complies with the precision requirements of IEC61672-2002 Type I
- Saturation Level (typical at 1 kHz): 120 dB-A, 120 dB-C, 120 dB-Z
- Temperature Error: Better than 0.6 dB (-20C < T < 60C)
- Sensitivity to Vibrations: 60 dBSPL/g (20 dB lower than typical measurement microphone)
- Weighting Curve: dB-A, dB-C, dB-Z
- Noise-Floor (Typical): 30 dB-A, 46 dB-C, 52 dB-Z
- Recording Resolution: 0.1 dB
- Duty Rate of Signal Capture: 100% No Missed Samples
- Min Log Interval: 125 ms (8 points of Lmin, Lmax and LEQ per second)
- Real-Time Spectral Display: 2048-Point Power Spectrum dB or Lin Scale.
- Calibration: Field-calibrated using a 94 dB 1/2 calibrator
- Connectivity: USB, WiFi
- Radio Standard: IEEE 802.11 b/g/n
- Radio Certification: FCC, IC, Japan, Korea, CE
- Battery Type: Integral Li-Poly USB-Rechargeable
- Recharge Time: 2 h 30 (Typical)
- Battery Autonomy (Full-Charge): 7 days while recording (WiFi operation will drain battery slightly more, depending on rate of connect)
- Battery Life: > 300 Charge/Discharge Cycles
- Temperature Range: -20C to 60C (-4F to 140F)
- Recording Memory Type: Non-Volatile Flash Memory
- Recording Memory Capacity: 128 Mb, Ex: can continuously record Lmax, Lmin and Leq levels at 1s intervals for 32 days, or 10s intervals for 320 days.
- Recording/Erasure Cycles: Greater than 100 000
- Data Retention: Greater than 20 Years
- Dimensions: 19 mm x 42 mm x 160 mm (0.75 x 1.65 x 6.25)
- Weight: 100 g (0.1 lbs)
- Construction: Weather-proof enclosure
- Microphone Dust Protection: Expanded polytetrafluoroethylene (ePTFE) dust and water barrier
- WiFi Security: Open, WEP, WPA / WPA2
- Server Connection: IP address/Domain Name
- Protocol: TCP/IP Proprietary Protocol
The Data Collection Service
- 24/7 data collection from instruments anywhere in the world
- No need for a dedicated server for data collection or emails
- Automatic alarm emails with no need to configure email account
- Automatic instrument configuration through the web
- Data can be downloaded via simple web browser from anywhere in the world
- Data can be viewed at any time on any web browser, such as PC, MAC, phone etc.
- 500 MB of storage space per instrument
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