Sound Level Meter Portable Digital Decibel Meter Audio Noise Measurement Handheld Measuring Instrument 30 to 130dBA Monitoring Tester LCD Screen Detector

Specification: Color: White &Blue Material: ABS Plastic Display: LCD Display Dimension:6.97*2.2*1.4*inches Frequency weighting: A Weighting Frequency response: 31.5Hz -8KHz Level ranges: 30dB -130dB Resolution: 0.1dB Response time: (FAST)125ms Accuracy: ±1.5dB  Operation Environment: 0-40°C 10-80%RH Storage Environment: -10-60°C 0-90%RH Auto power off: Auto shout down after 12 minutes of inactivity Sensor: 1/2 inch electric condenser microphone Power: 3* 1.5V AAA Batteries(Not Included) Warm Tips: 1. Please do not use the meter under a high temperature and humid environment. 2. Please take out the batteries when not in use for a long time to avoid electrolyte leakage and damaging the meter. 3. When measuring the noise outside, please mount the wind-resistant ball on the head of the microphone from being directly blown by wind and measuring other noise.   Quality Guarantee:  Free exchange within 12 months product warranty. If you have any problems, please feel free to contact us.    Package Contents: 1 * Ejoyous Sound Decibel Meter 1 * Sponge Ball 1 * Package Box 1 * User Manual