1.     Measurement Parameters: Sound level meters typically measure sound pressure level (SPL) in decibels (dB). They can also provide additional measurements such as frequency weighting (A, C, or Z-weighting), time weighting (fast, slow, or impulse), and peak sound level. These parameters help assess different aspects of sound, such as its intensity, frequency characteristics, and transient events.

2.     Measurement Range: Sound level meters have a specified measurement range that determines the minimum and maximum sound levels they can accurately measure. It is important to choose a meter with an appropriate range to cover the expected sound levels in the environment of interest. Common measurement ranges range from 30 dB to 130 dB or more.

3.     Microphone Type: Sound level meters use built-in or detachable microphones to capture sound. The microphone's characteristics, such as its frequency response and sensitivity, can affect the accuracy and performance of the meter. Choose a meter with a high-quality microphone that meets the measurement requirements of your application.

4.     Display and Readability: Sound level meters have a display panel to show the measured sound levels in real-time. The display should be clear, easy to read, and provide relevant information such as the current sound level, measurement parameters, and any additional indicators or warnings.

5.     Data Logging and Analysis: Some sound level meters have data logging capabilities, allowing them to store and record sound level measurements over time. These meters can be useful for long-term monitoring and analysis of noise levels. Look for features such as data storage capacity, time-stamped measurements, and the ability to transfer data to a computer for further analysis.

6.     Calibration and Standards Compliance: To ensure accurate and reliable measurements, sound level meters should be calibrated regularly. Calibration ensures that the meter meets the required standards and accurately represents sound levels. Consider meters that comply with recognized standards, such as IEC 61672 or ANSI S1.4, and provide options for calibration and verification.

7.     Additional Features: Sound level meters may offer additional features such as audio recording, data analysis software, real-time frequency analysis, octave band analysis, integration time measurements, and audio output options for headphones or external devices.

8.     User-Friendly Interface: A user-friendly interface with intuitive controls and menu navigation makes operating the sound level meter easier. Consider meters with clear button layouts, backlighting for low-light conditions, and customizable settings to suit your preferences.

When selecting a sound level meter, it is important to consider the specific requirements of your application, such as the desired measurement range, accuracy, and additional features needed. Follow the manufacturer's guidelines for proper usage, calibration, and maintenance to ensure accurate and reliable sound level measurements.