TR-HILO
Underwater ambient noise meter
low power. wide dynamic range.
simple ambient noise measurements.
TR-HiLo is a real time, in-situ, underwater, dual channel, ambient noise meter that includes calibrated
high and low sensitivity hydrophones to maximize dynamic range at an affordable price. TR-HiLo features
ultra-low power consumption so that deployments can last for months on integrated batteries while
operating at 100% duty cycle. This product features real-time signal processing, recording and reporting
of third octave spectrums, SPL histograms, SEL, peak levels, average levels as well as transient calculations
for pulsed measurements.
This underwater instrument is easy to use, deploy and configure, while at the same time
is flexible enough to be useful in almost any underwater noise measurement scenario.
Users can set configurable averaging times and analysis window lengths for SPL and SEL
measurements, and easily set up the instrument for triggered recording or real time reporting
on these noise statistics. All set up and configuration is done over Bluetooth with any Android
phone or tablet, so that the instrument can be programmed easily in the lab or in the field.
902 499 2796
TURBULENTRESEARCH.COM
SALES@TURBULENTRESEARCH.COM
Turbulent Research designs and develops marine electronics products for rich & robust real time
data acquisition and signal processing. Our company was founded by engineers with a passion
for design, signal processing and delivering world class products.
TR-HiLo
Technical Specifications
POWER
Less than 1mW in Sleep Mode
Internal Power : Alkaline C Cells (User Replaceable)
External Power: 10-18 V DC
USB Power: 5 V DC
Power Consumption : 300 mW (Average)
Deployment Duration: 60 Days – 1 Year (Depending on Duty Cycle)
ACOUSTIC CHANNELS
Number of Channels : 2
ADC Number of Bits : 24
Dynamic Range Per Channel : 100 dB (Full Bandwidth)
Total Dynamic Range With High and Low Sensitivity Hydrophones: Better than 150 dB
Configurable Gain: 0 dB- 40 dB on both channels (0.5 dB steps)
Sampling Rates Supported: 24 KHz, 48 KHz, 96 KHz
HYDROPHONE
High Sensitivity Option: Sensitivity -165 dB Re 1V/uPa
Low Sensitivity Option: Sensitivity -210 dB Re 1V/uPa
Key
features
Bandwidth: 10 Hz to 40 KHz
Hydrophones mounted on end cap, or connectorized with custom cable lengths
Customized sensitivities and bandwidths available on request
MEMORY
• Real time Signal Processing, Recording &
Configurable recording, sceduling and duty cycling
Reporting of Underwater Noise Levels & Statistics
SIGNAL PROCESSING
OPTIONS
• High & Low Sensitivity
Hydrophones Included for more than
150 dB of Usable Real Dynamic Range
SPL Histograms: Min, Max, 5%, 50%, 95%
ap
• Easy to Deploy, Use and Configure
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and Low Long Term Costs from In-Situ Analysis
US ABOUT
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NAL
CUSTOM SIGSING
PROCES
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• Low Up Front Purchase Cost
Real Time One Third Octave Spectral Processing Designed for IEC and ANSI
Specifications
RMS SPL Computed In All One Third Octave Bands from either 10Hz-10 KHz or 20
Hz to 20 KHz, or 40 Hz to 40 KHz
• Ultra Low Power Consumption
for Ultra-Long Deployments
Integrated 128 GB SD Card (Fat32 Formatted File System)
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p l ic at
Configurable RMS Averaging Window Times : 100 ms – 1 hour
Configurable Analysis Window Times : 1 s – 1 month
Additional Continuous Calculations: Max Compressional Pressure, Max Refractional
Pressure, Peak to Peak, Sound Exposure Level, Cumulative Sound Exposure Level
Transient processing for impulsive noise:
RMS pressure in 10ms windows, Cumulative SEL, Pulse length
Triggered recording or real time reporting on noise statistics (exceeding SPL or SEL
thresholds in any third octave band, instantaneous or cumulative)
Product applications
COMMUNICATIONS
Full Speed USB for Download
RS422 (232 available with external converter) for real time monitoring
Bluetooth for setup and configuration with Android Phone or Tablet
Seismic Monitoring
ENVIRONMENTAL
Pile Driving Monitoring
Material Delrin or Anodized Aluminum or Titanium
General Ambient
Noise Studies
Wind & Tidal Renewable
Energy Monitoring
200m depth standard (Deep options available on request)
Operating Temperature: -10°C to +-50°C
INTEGRATED SENSORS
3 Axis Compass
3 Axis Accelerometer
Real Time Clock
Specifications subject to change without notice.
*
902 499 2796
TURBULENTRESEARCH.COM
SALES@TURBULENTRESEARCH.COM
Turbulent Research designs and develops marine electronics products for rich & robust real time
data acquisition and signal processing. Our company was founded by engineers with a passion
for design, signal processing and delivering world class products.