●Wide Range & Accuracy: The ultra-sensitive condenser microphone captures ambient noise from 30 to 130 decibels with pinpoint accuracy of ±1.5 dB. This sound level meter uses A-weighting, samples the soundscape twice per second ideal for analyzing ambient noise such as traffic, machinery, and speech. ●Large screen & multifunction: The digital noise meter has large backlit LCD readout displays, ensuring visibility even in dim conditions. When the volume exceeds a specified limit, the screen flashes as an alert. The MAX/MIN feature captures the maximum and minimum noise levels, and data hold functions allow you to freeze readings, presenting the full range of readings for any location or device. ●Lightweight and Portable: Weighing a mere 4.5 ounces, this ergonomic sound level meter, making it easy to carry with you wherever you go. The decibel measurer also has a 1/4” mount thread for attachment to stand for hands-free operation. ●Power Saving Long Lasting: The automatic 10-minute shutoff and long-life batteries enable 14 hours of continual monitoring. ●What You Get : 1x decibel meter, 3x AAA batteries included, a user manual, a 12-month warranty, and friendly 24/7 customer service our expert technicians and customer support team stand ready to assist you. (Note: The sound level meter is well calibrated with the standard of 94 db @ 1kHz at factory before shipment.)