Digital Noise Level Meter with Bluetooth, 30 to 130 dBA

The digital sound level meter is an accurate noise measurement tool with ±1.5dB high accuracy and an A-weighted mode that simulates the auditory response of the human ear. With a resolution of 0.1dB, it can accurately measure the frequency range from 31.5Hz to 8kHz, and the sampling rate can be adjusted to either 125ms or 1000ms, ensuring that measurements can be taken in a variety of situations. The mini sound level meter is also equipped with an overload indicator, which automatically displays the “UN” or “OL” symbol to help the user identify if the measurement range is out of limits.

Specification

Feature

1. Miniature Condenser Microphone: Adopting miniature condenser microphone sensing technology and bandpass counting network design, this microphone is designed with metal holes, internal double protection in case of accidental fall can still protect the sound head intact, so you can rest assured that safe to use.
2. Standard 1.5V Battery Compartment: Lift-off battery compartment design, one-piece battery back cover, easy to use, push the product panel downward in the direction of the arrow to open the battery door, lift up the battery door and remove the battery, and install a new battery in accordance with the polarity prompts.
3. LCD Large Backlit Display: Measurement data function symbol display, readings at a glance, high definition, can be backlit display data.
4. Convenient Design: Exquisite and compact, easy to carry and operate silicone buttons, after friction test, not easy to lose color, better feel.

Dimensions (unit: mm)

Details

Tips: Digital noise level meter basics

Most digital noise level meters have a measurement range of 35dB to 135dB, which is sufficient to cover noise levels from very quiet environments such as libraries to very noisy places such as construction sites.

Many digital noise level meters have a data storage function that enables multiple measurements to be saved. This data can be viewed on the display on the device or uploaded to a computer via an interface such as USB for subsequent analysis.

Digital noise sound level meters usually require periodic calibration to ensure the accuracy of your measurements. The calibration procedure involves using a calibrator, usually set at a standard noise level of 94dB or 114dB, and connecting it to the microphone of the sound level meter. Start the sound level meter and adjust the unit until it displays a reading that matches the calibrator. It is recommended that calibration be carried out once a year, or when the unit has been subjected to severe shock or has not been used for a long period of time.