Typical representation of REED ST-173 Sound Level Data Logger (Discontinued) Product picture of ST-173 REED Sound Level Data Logger (Discontinued) for illustration purposes only. Actual product may vary.

Sound Level Data Logger (Discontinued)

This compact Data Logger with metal support comes with software CD, 1/2" electret condenser microphone and plugs directly into PC via integral USB port. Great sampling rate and features.

Accredited calibration/NIST traceable calibration certificate for REED ST-173 Sound Level Data Logger (Discontinued) might be available on request (for an extra charge). Please contact us for more info.

REED Sound Level Data Logger (Discontinued): instrument description

This Reed ST-173 Sound Level Data Logger has been discontinued. Information shown here is for reference only.
We recommend the new REED ST-805 Sound Level Meter with Data Hold function and two level ranges: Lo: 30~100 dB; Hi: 60~130 dB. REED ST-805 was specifically designed to provide a simple way for sound measurements with 0.1 dB resolution and ±1.4 dB accuracy.

Designed for noise assessment, the Reed ST-173 sound level data logger is an ideal instrument for qualit control, illness prevention as well as detection and measurement of all environmental sounds. These 30 to 130 dB Sound Level Data Logger (YST-173 model )are ideally suited for anyone looking for a great instrument that offers good precision and accurate measurement of sounds in factories or offices, traffic areas, schools and households and more. The instrument comes with metal support stand, windscreen, transparent cap, software CD, instruction manual and battery.

REED ST-173 Features

  • This unit conforms to the IEC61672-1 CLASS2 for Sound Level Meters
  • NORM (Normal) & PEAK mode
  • Data manage: STORE/REAL TIME
  • Over range indication
  • A & C Weighting
  • FAST & SLOW response
  • Calibration Software
  • Manual & Automatic start

REED ST-173 Specifications

  • This unit conforms to the IEC61672-1 CLASS2 for Sound Level Meters
  • Safety Standard: Conforms to IEC61672-1 Class 2
  • Accuracy: ±1.4dB
  • Frequency Range: 31.5Hz to 8kHz
  • Dynamic Range: 50dB
  • Measuring Range: 30dB to 130dB
  • DataLogger Capacity: 129920 readings
  • Sampling Rate: 1 second to 24 hours
  • Frequency Weighting: A and C
  • Time Weighting: Fast: 125mm, Slow: 1 second
  • Microphone: ½” Electret condenser microphone
  • Operating Indication: Green LED flash
  • Memory Full Indication: Yellow LED flash
  • Data Output: USB data traffic
  • Power: One 3.6V battery, specs: 14250 or 1/2AAA
  • Electric Current: Normal working is approximately 6mA
  • Battery Life: Approximately 200 hours
  • Operation Temperature & Humidity: 0°C to 40°C, 10&RH to 90&RH
  • Storage Temperature
  • & Humidity: -10°C to +60°C, 10&RH to 75&RH
  • Dimensions: 5.1 x 1.1 x 0.9” (130 x 30 x 25mm)
  • Weight: 1 oz (20 g)

How to use REED Sound Level Data Logger (ST-173)

For using the instrument into Manual mode, press and hold the power button for 2 seconds, the DataLogger will start to take the measure. The LED indicates the status function at the same time.
With the Data Logger into the Automatic mode the measurements will be taken using the software and your computer. Before using in this mode, you need to setup the software first. As a measurement is being taken, the green LED indicates it’s working by flashing with the frequency setup in the software. As a measurement is being taken, if the measured value exceeds the alarm range, the red LED will flash (2 times-high alarm, one time-low alarm). When the DataLogger’s memory is full, the yellow LED will flash 10s/time. DataLogger data can be read time after time, the readings you are checking are real time measured (1 to 129920 readings). Without battery, the last 1.5 hours (maximum) of data will be lost. Other data can be read using the software after the battery is replaced.

Software Installation & Operation

Insert the software CD into the CD-ROM. Run SETUP.EXE installation program in file DISK1, install it to the directory of C:Program FilesSound Datalogger.Plug the Datalogger to the USB port, system will find and install the USB-driver. Select the relevant Driver under the directory which the software installed. Weh the driver installation was done, a “USB I/O controlled devices” will appear in the Device Manager. You can find “Silabs C8051F320 USB Board” under this directory. Thus software and driver are installed.

Once the software was installed you can manage the following functions from software interface:

  • Sampling Setup: Set the time of the sampling rate: (1 second to 24 hours)
  • Alarm Setup: Set the alarm function
  • LED Flash for Hi and Low Alarm: High and low alarm indicates whether you need the LED Flash or not
  • LED Flash Cycle Setup: The flash frequency of the indicating LED
  • Manual/Automatic: Manual or Automatic mode
  • dBA/dBC: Weighting selection
  • FAST/SLOW: The Response time selection
  • NORM/PEAK: The metrical mode selection
  • STORE/REAL TIME: Data manage

Instrument Download Data

NORM MODE: Sound MAX/Sound MIN means the MAX degree or MIN degree of the sampling data. It is the average value of the 20 sampling data. PEAK MAX/PEAK MIN means the MAX or MIN degree of all the measuring values (not the average value).
PEAK MODE: Sound MAX/Sound MIN means the MAX degree or MIN degree of the 20 sampling data. PEAK MAX/PEAK MIN means the MAX or MIN degree of all the measuring values.

Calibration Software

You need to calibrate the software if the microphone or the replacement microphone cause an offset in the reading measurement. To begin this process click on calibrate icon. In the following window you will be able to set the “Ajustment Value” (single calibration value, ranging from -12.5 to 12.5). Press the OK button. The “Total calibrated value is -0.5 dB”, calibration over. The range of the total calibrated value is from -12.5dB to 12.5dB. For specifics regarding the application of this software please see the user manual.

Ordering info

As a canadian distributor of REED Instruments products we stock most of these Decibel Meters for same day shipping. To enquire on the REED ST-173 Sound Level Data Logger (Discontinued) availability and current list price please contact us.


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