Feature: 1. Wide Measurement Range: With a measurement range from 30.0 to 130 dBA and an accuracy of ±1.5 dB, this sound meter is suitable for a variety of acoustic assessments. 2. Maximum Minimum Value Lock: Easily lock the maximum or minimum values with the press of the MAXimum or MIN button, allowing you to catch key sound levels effortlessly. 3. Clear Backlit Display: The large display features a white backlight, ensuring you can easily read measurements even in low light environments, enhancing usability during any scenario. 4. High Accuracy Sensor: Equipped with a highly sensitive 1/2inch capacitive microphone, this decibel meter delivers high accuracy, responsiveness, and overall performance for accurate readings. 5. Multi Scenario Use: Designed for easy portability, this sound level meter is suitable for various settings, be it home, office, or industrial environments, making sound measurement convenient and efficient. Specification: Item Type: Digital Decibel Meter Material: ABS Measurement Range: 30.0-130dB Resolution: 0.1dB Accuracy: ±1.5dB (calibrated at 94dB at 1KHz) Frequency Weighting: A Weighting Noise Display: 4 digit display, maximum 1999 Frequency Response: 31.5Hz-8KHz Time Weighting: FAST (0.125 sec), SLOW (1 sec) Sampling Rate: 2 times/sec Microphone: High sensitivity 1/2 inch electret condenser microphone Operating Environment: -10-50℃, maximum 80% relative humidity, indoor alt < 2000m Storage Environment: -10-50℃, maximum 70% relative humidity (remove batteries) Battery: 1.5V AAA battery x3 (batteries not included) . Package List: 1 x Sound Level Meter 1 x Carrying Bag