Wintact Decibel Meter 30 to 130dBA, Digital Sound Noise Level Reader Tester Portable with Calibration for Classroom Home, School, Outdoor, Ambient

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.)