Specification Brand : CHICIRIS BulletPoint1 : [Alarm Function] Meter beeps and locks data when noise exceeds set value, ensuring accurate readings. BulletPoint2 : [Data Storage] Automatically stores noise data every 2 seconds, preserving largest noise value for up to one year. BulletPoint3 : [Usb Connectivity] Easily download records, collect samples, and print charts using usb cable. BulletPoint4 : [Versatile Use] Ideal for families, factories, offices, hotels, hospitals, laboratories, theaters, and audio systems. BulletPoint5 : [Large Clear Display] Super large 9.6 inch lcd digital display with backlight for easy reading in dark areas. ItemName : Wall DB Meter, 30-130db Hanging Decibel Meter USB Sound Meter Digital Noise Tester, 9.6 ItemPackageDimensions_Height : 6 centimeters ItemPackageDimensions_Length : 23 centimeters ItemPackageDimensions_Width : 18 centimeters ItemTypeKeyword : sound-and-noise-meters Manufacturer : CHICIRIS ModelNumber : CHICIRIS7gpz1iyfxr PartNumber : CHICIRIS7gpz1iyfxr ProductDescription : [Alarm Function] Meter beeps and locks data when noise exceeds set value, ensuring accurate readings. [Data Storage] Automatically stores noise data every 2 seconds, preserving largest noise value for up to one year. [Usb Connectivity] Easily download records, collect samples, and print charts using usb cable. [Versatile Use] Ideal for families, factories, offices, hotels, hospitals, laboratories, theaters, and audio systems. [Large Clear Display] Super large 9.6 inch lcd digital display with backlight for easy reading in dark areas. Specification: ModelSW-525B Accuracy±1.5dB Measurement Range30~130dB Frequency Response Range31.5Hz~8.5KHz Frequency WeightingA ResponseFast Resolution0.1dB(100dB) Alarm Reminder(sound+display)Yes Alarm OutputYes Storage Function2secs/time, can be stored for a year Communicationconnecting PC via USB cable Working Temperature/Humidity0-40℃, 10%~80% Storage Temperature/Humidity-10-60℃, 10%~70% PowerDC 5V 1A micro USB Product Size(appr.)228x125.5x32mm / 9.0x4.9x1.3inch Package Weight(appr.)612g AccessoriesUSB Cable, User Manual, CD Package Included: 1 x Sound Meter 1 x USB Cable 1 x User Manual 1 x Card Warning: 1. Do not use meter in high temperature and high humidity environment. 2. Do not use meter near corrosive material. 3. Do not use meter in the conditions that should be splashed by water. 4. Do not use meter in heavy dust environment. 5. Do not use meter in an environment with chemical gas.