There are only a few options available for the Nova sound level meter, as the meter is well equipped already. These options depend on your measurement regulations and how you want to deal with the noise measurements after they have been made.
If you are working to any noise measurement regulations, these should state whether you need a Type 1 or a Type 2 sound level meter. This refers to the accuracy of the meter, with Type 1 being more accurate than Type 2.
The only physical difference between the meters is the microphone capsule. The Type 1 meter is fitted with a more sensitive and more stable capsule, which of course is more expensive to make.
The newer IEC 61672 refers to Class 1 and Class 2. The Nova meets both the new and the old standards.
A Calibrator is a small hand-held device that fits onto the microphone and emits a very precise tone. It is used to ensure the meter is functioning correctly and to make small adjustments to the measurement chain to account for changes in temperature and pressure.
Many noise measurement regulations demand the use of a Calibrator before and after measurement sessions.
A windshield is used to reduce the effect of wind on the microphone capsule. It is essential for outdoor measurements and even indoors when working around machinery that creates any amount of air flow. A windshield is recommended for all applications as it protects the microphone from accidental knocks.
With the data logging option fitted the Nova sound level meter stores all your noise measurements, in both summary and time history form, which provides a graph of sound level over time.
The AnalyzerPlus software is included, along with a download cable.
Please visit the Software and Data Logging page for more information.