Features: Handheld Handheld Noise Tester The decibel monitor is a compact and easy to carry device for measuring noise levels from 30 to 130dB. Accurate Measurement This digital sound level meter utilizes advanced technology to provide precise readings of sound levels in various environments. Suitable for Different Users Whether you are a homeowner concerned about sound pollution or an environmental professional monitoring the impact of noise, this noise tester is designed for individuals and organizations alike. Measuring Ranges: 30dB-130dB,With wide measurement ranges from 30dB to 130dB, easy to operate and use.. Sound level meter, adopts 4 bit color LCD display, visual display of measurement results, clearly and easy to read. Specifications: Material:ABS Measurement Ranges:30~130dB Frequency response: 31.5Hz~8KHz Display resolution: 0.1dB Powered by:3pcs AAA Battery (not included) Maximums/ Minimum: YES Bluetooth-compatible:YES Dynamic characteristics: FAST 125ms, SLOW 1000ms Size:Approx.195mm/7.67''x73mm/2.87''x34mm/1.33'' Package Includes: 1x Decibel Meter note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.