Professional Sound Level Meter with Backlight Display High Accuracy Measuring 30dB-130dB Read more Features This Decibel Meter with PC Interface is compact and easy to use while providing you an accurate readings in a greater range than similar inexpensive sound meters on the market. This sound meter can read between 30dB~130dB, and capture data to a PC using the compatible software (included in the set). Applications includes: Environmental measurement, law enforcement, work place design, sound level analysis of machinery and engines. 32000 Reading Internal Memory (Data record function) Data Logging function When connected to computer, the measurement are live on computer screen too Maximum data recording limit can be adjusted via the PC interface Includes CD Software (dual language: English, Chinese), AC/DC wire & batteries Adjustable Over / Under alert threshold via computer interface CE Certified & RoHS Compliant Read more CONVENIENT & LIGHTWEIGHT This sound level meter is lightweight and easy to carry. With a mounting hole for the tripod, which can be placed on the stand and is easier to measure when your hands are busy (Tripod not included). LCD DISPLAY WITH BACKLIGHT You can use this meter in the dark without problem as it has backlit feature and largeLCD display with clear readings. POWER SUPPLY The digital sound noise level meter is equipped with sponge ball to resistant wind with 4 x AA Size 1.5V battery or USB cable for power supply. Read more Read more Read more Product Features CE Certified & RoHS Compliant PC Interface :Compatible with Windows 10, 8, 7, Vista and XP 32000 Reading Internal Memory (Data record function) Can read between 30dB~130dB, and capture data to a PC Auto Ranging with Bar graph display