15-year
Warranty
CR310 Low-Cost Integrating Decibel Meter
Sound Level MetersThe CR:310 low-cost integrating decibel meter is ideal for providing noise measurement data, and assisting you in carrying out basic noise-at-work assessments
- Class 2 integrating sound level meter (meets IEC 61672-1:2013)
- Measure Sound Pressure Level (SPL) and Maximum Sound Level (LMax)
- Leq, and Leq8h
- A and C frequency weightings
- Basic workplace noise assessments
The Cirrus Research Low-Cost Integrating Decibel Meter
The CR:310 is an integrating decibel meter ideal for simple noise measurements and basic noise at-work measurements. In addition to measuring the maximum sound level (LMax), CPeak, and the sound pressure level (SPL), the CR:310 provides average noise level data (Leq) and the overall dose values (Leq8h), this allows it to be used for basic workplace noise assessments.
The decibel meter also displays A and C frequency weightings, as well as Fast and Slow time weightings which other basic sound level meters available on the market cannot. The CR:310 displays the Leq for one measurement, using the start/stop button on the instrument. You can also send the measurements directly to a portable printer (sold separately).
Learn more about our CR310 Low-Cost Integrating Decibel Meter
If you would like to learn more, a member of our team will be happy to help
The CR:310 is an integrating sound level meter designed for simple noise measurements and basic workplace noise assessments. It provides sound pressure level (SPL), maximum level (LMax), average level (Leq) and overall dose (Leq8h) data for quick and reliable results.
Yes. The CR:310 meets the international noise measurement standard IEC 61672-1:2013 Class 2, ensuring accurate and consistent measurement results.
It measures SPL, LMax, Leq, Leq8h and CPeak, with both A and C frequency weightings and Fast/Slow time weightings – making it more capable than basic non-integrating meters.
Yes. Because it provides average noise levels (Leq) and 8-hour dose values (Leq8h), the CR:310 can be used for basic workplace noise-at-work assessments.
The meter runs on 2 × AA cells or 5 V DC via USB, and typically offers around 24 hours of battery life for long measurement sessions.
You can connect a portable printer (sold separately) to print measurements directly from the meter.
Unlike simple non-integrating meters, the CR:310 calculates average (Leq) and dose (Leq8h) noise values, which are needed for workplace noise assessments and compliance checks.
The CR:310 integrating decibel meter should be field-calibrated before and after use with an acoustic calibrator to confirm accuracy. For formal measurements and compliance purposes, the instrument should also receive annual laboratory calibration, which can be provided with UKAS-traceable calibration.
Applicable Standards:
IEC 61672-1:2013 Class 2
Measurement Range:
30dB (A) to 130dB (A)
40dB (C) to 130dB (C)
Frequency Weightings:
A and C
Time Weightings:
Fast (F) and Slow (S)
Display Functions:
Normal, Maximum, Minimum, C peak
Measurement Functions:
LAF, LAS, LCF, LCS, LCpk
Leq (CR:310), LEq8h (CR:310)
Noisefloor:
< 25dB (A) and 35dB (C)
Display Flags
Threshold Limit, Overload, Under-range
Auto Calibration Range:
±4.5dB
Reference Point:
94dB (1kHz), 92.9dB (8kHz)
Setting Time:
60s
Display:
Backlit 128×64 LCD，resolution 0.1 dB.
Resolution:
0.1dB
Electrical Inputs:
5V power in via mini USB
Power:
2 x AA/LR6 1.5V batteries
Or
5V DC via Mini USB
Battery Life:
24hrs
Microphone:
½˝ pre-polarised electret condenser type HY:205
Operating Temperature:
0°C to +40°C
Operating Humidity:
25% to 90%
Atmospheric Pressure:
65 kPa to 108kPa
Storage Temperature:
-20°C to +60°C
Dimensions:
215mm×68mm×32 mm
Weight:
220g（including battery)
Electrical Outputs:
AC (Tip 3.5mm jack) and DC (middle 3.5mm jack)
DC Output:
voltage 15mV/dB, range 450mV to 1950mV
AC Output:
RMS 2V
There are no reviews yet.