DescriptionThis digital sound level meter is the perfect tool for testing decibel. It supports max/minimum value, data hold, auto shutdown, low battery notification, backlight and over range indication. It is powered by 3 AAA batteries (not included) and convenient to replace.Features- Color: As shown- Size: 16x5x3.3cm- Material: plastic- Noise level: 30130dBA 35130dBC 1.5dB (31.5Hz~8kHz)- Power supply: 3 1.5V AAA batteries (not included)- Support: Max/minimum value, data hold, auto shutdown, low battery notification, backlight and over range indication.- Condenser microphone and dual protection, still working after accidentally falling.- Powered by 3 1.5V AAA batteries (not included). Compact and portable design enables easy carry.- LCD backlight display, easy to read readings.