The CR:308/310 is a basic sound level meter that is perfect when you need basic noise information, capable of measuring the maximum sound level (LMax) and the sound pressure level (SPL).
The Cirrus CR:308/310 sound level meters provide an entry level for noise measurement across multiple sectors, and meets current international standards for noise measurement instrumentation.
Both variants provide the SPL and LMax readings, which can help you determine how loud something/somewhere is without overcomplicating the data with other acoustic information. Both variations can also measure different frequency weightings, which provides more detailed and accurate data than many other basic sound level meters on the market.
The CR:308 displays the SPL and LMax data, and comes with the ability to set your own noise level alert. Simply choose a decibel level, and when the meter records a noise level that meets or exceeds your pre-set value, a indicator will appear on the screen. This is incredibly useful when you need to know quickly and easily whether or not something is louder than a prescribed value.
The CR:310 can display the Leq for one measurement, using the start/stop button on the instrument. It can also sned results directly to a portable printer, which is sold separately.
- Simple to use
- Clear, backlit LCD display
- DC and AC out
- Long battery life
- Customisable noise level threshold alarm (308)
- Leq view (310)
- Print results directly to a portable printer (310)
- People who need a basic understanding of noise levels
- Alarm installers
- Simple noise testing
- Machine and factory noise
- Noise ordinance surveys
- Fire alarm testing
- Basic noise at work assessments
IEC 61672-1:2013 Class 2
30dB (A) to 130dB (A)
40dB (C) to 130dB (C)
A and C
Fast (F) and Slow (S)
Normal, Maximum, Minimum, C peak
LAF, LAS, LCF, LCS, LCpk
Leq (CR:310), LEq8h (CR:310)
< 25dB (A) and 35dB (C)
Threshold Limit, Overload, Under-range
Auto Calibration Range:
94dB (1kHz), 92.9dB (8kHz)
Backlit 128×64 LCD，resolution 0.1 dB.
5V power in via mini USB
2 x AA/LR6 1.5V batteries
5V DC via Mini USB
½˝ pre-polarised electret condenser type HY:205
0°C to +40°C
25% to 90%
65 kPa to 108kPa
-20°C to +60°C
AC (Tip 3.5mm jack) and DC (middle 3.5mm jack)
voltage 15mV/dB, range 450mV to 1950mV
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