Accurate Measurement: The sound level meter does not need to be touched, it can measure the sound quality in various environments and display the test results quickly and accurately. Sensitive Sensor: The sound level meter uses professional high-precision sensors with excellent sensitivity and accuracy. Its performance is stable and reliable. High Definition Screen: Large screen with high-intensity LED backlight, can cope with strong light, night and other conditions. Automatic Shutdown: This sound level meter has an automatic shutdown function and will automatically turn off after 3 minutes of inactivity, environmental protection and energy saving. Widely Used: This sound level meter is widely used in vehicle noise testing, industrial equipment noise testing and home noise testing. Accuracy: 1.5dB Frequency Range: 31.5Hz to 8.5Hz Measurement Level: 30-130dBA Resolution: 0.1dB Time Weighting: Fast Power Supply: 3 x AAA 1.5V Alkaline Batteries (Not Include) Microphone: 1/2 inch Electret Condenser Microphone Operating Temperature: 0-40 Operating Humidity: 10%-80%RH Storage Temperature: -10-60 Storage Humidity: 10%-70%RH Weight: Approx. 111g / 3.9oz Size: Approx. 155 * 50 * 25mm Package List: 1 * Digital Sound Level Meter Note: This does not include other things, the color is based on the first picture, and other pictures only show the effect Due to the differences between different monitors, the picture may not reflect the actual color of the item. Due to manual measurement. Please allow the diversion. Thank you!