This sound level meter boasts several features and specifications designed to provide accurate measurements and convenient use. Here's a breakdown of its key attributes: Item Type: Sound level meter Material: ABS, LED Color: Black Measuring Range: 30dB-130dB Accuracy: 1.5dB (based on standard sound source, 94dB at 1KHz) Frequency Response: 31.5Hz-8.5KHz Frequency Weight: A weight Response Time: Fast, 0.5 seconds Sensor Type: 6mm condenser microphone sensor Digital Display: 3 digits Resolution: 0.1dB (100dB) Alarm Prompt Mode: Sound and display Alarm Output: 12V high level Refresh Speed: 2 times per second Power Mode: DC5V 1A Micro USB interface Operating Temperature and Humidity: 0-40C; maximum relative humidity 80%, indoor altitude <2000 meters Storage Temperature and Humidity: -10-60C; maximum relative humidity 70% Out-of-Range Display: The highest position displays "Hi" or "Lo" Additional Features: Digital Screen: Utilizes a 13-inch large screen for clear viewing of real-time decibels, temperature, and humidity, with adjustable brightness. Alarm Prompt: Features a default alarm value of 130dB, sounding an alarm when the measuRED value exceeds this threshold. Good Heat Dissipation: Designed with multiple heat dissipation holes on the rear panel for safe and durable long-term operation. 4-Level Display Bar: Equipped with an analog bar level indication, with 6 noise decibel displays. Levels 30-75dB are displayed in green, while 76-130dB are displayed in RED, providing clear and intuitive information. Easy Installation: Can be wall-mounted with the included bracket or placed on a desktop, suitable for various scenarios. Overall, this sound level meter offers reliable performance, convenient installation options, and user-friendly features for effective monitoring of sound levels in different environments.