1、ACCURATE MEASUREMENT: This digital sound level meter provides accurate sound level measurement and is suitable for a variety of environments such as industrial and environmental 2、PORTABLE AND EASY TO USE: This portable sound level meter has a light and compact design that makes it easy to use and carry around, suitable for field work and outdoor activities 3、MULTIPLE FUNCTIONS: This sound level meter can be used as industrial sound level meter, environmental sound level meter, handheld sound level meter, acoustic analyzer, noise dosimeter, acoustic meter and more 4、CLEAR DISPLAY: With a clear digital display, the digital db meter can easily read sound level readings for accurate measurement results, useful and practical 5、STRONG MATERIAL: This sound level meter is made of quality materials and is extremely long lasting, ensuring that can withstand frequent use in a variety of environments Item Type: Sound Level Meter Material: ABS Measuring Range: 30-130dB Accuracy: ±1.5dB (at reference pressure level, 94dB at 1kHz) Resolution: 0.1dB Frequency Weighting: A/C weighting Time Weight: FAST (fast) 0.125 seconds, SLOW (slow) 1 second Sampling Rate: 2 Times per second Frequency Response: 31.5HZ-8kHz Noise Display: Four digit display, maximum 1999 Microphone: Highly sensitive 1/2in capacitive microphone Power Supply: 3 x 1.5V AA batteries(not included) 1 x Noise Meter 1 x User Manual 1 x Storage Box