If you're looking for a device to measure decibel levels without purchasing a professional sound meter, you can consider using a smartphone or tablet. Many mobile devices have built-in microphones and various apps available for measuring sound levels. Here are a few options:
Sound Meter Apps: There are several sound meter apps available for both iOS and Android devices. These apps utilize the built-in microphone of your smartphone or tablet to measure the sound level in decibels (dB). Some popular sound meter apps include SoundMeter, Decibel X, and SPL Meter.
Online Sound Level Meters: You can also find online sound level meters that use your device's microphone to measure noise levels. These web-based tools can provide you with a rough estimate of the decibel levels in your environment. One example is "Online Decibel Meter" by Cirrus Research.
It's important to note that while these options can give you a general idea of the sound levels around you, they may not be as accurate or precise as professional-grade sound meters. They can still be useful for casual measurements or to get a sense of the noise levels in your surroundings.
When using such apps or online tools, it's a good idea to keep in mind that the accuracy and reliability can vary based on the quality of the device's microphone and the app itself. If you require more precise and professional measurements, investing in a dedicated sound meter would be recommended.