Features: Sound Measurement: Employs a sensors for accurate sound levels assessment, ensuring outcome across diverse scenario. Capable of measuring sound levels from 30dB to 130dB, making it for use in areas such as workplaces, manufacturing sites, and open environment. Handheld Construction: Lightweight and easy to handle, this sound meter is convenient to carry and operate, ideal for quick sound levels check in various locations. Digital Readout Panel: Includes a distinct digital panel that displays current measurements and features a lighting function for reading in low-light conditions. Double Measurement Features: Offer A and C measurement selection; A selection simulates human ear sensitivity for surrounding noise, while C selection captures low-frequency sounds for industrial noise assessment. Specifications: Component: ABS Screen: 2inch color screen Frequency weighted characteristic: A and C Frequency response: 31.5Hz to 8.5KHz Dynamic scale display/value updates: Fast 0.5 times per second; Slowdown once per second Dynamic ranges: 3.50dB Measurement ranges: 30dB~130dB Brightness setting: Adjustable from 5% to 100%, with a step rate of 5% Date Clock: Year, month, day, time Battery: 1500mAh/3.7V battery(Include) Data Retention: YES Power Indication: YES Noise Value: YES Size: about. 183x63x28mm/7.2x2.48x1.1in Package Includes: 1pc Decibel Meter note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.