1. Sensor: 1/2 inch condenser microphone 2. Measuring range: 40-130dB 3. Measurement accuracy: about 2dB 4. Frequency response: 31.5Hz-8.5KHz 5. Frequency weighting characteristics: A and C characteristics 6. Resolution: 4 digits, resolution 0.1dB 7. Dynamic characteristic selection: Fast / Slow 8. Automatic shutdown: after about 10 minutes 9. Sampling rate: about 2 times/second 10. Power supply: 1 x 6F22 9V battery (not included) or DC 9V 100mA DC power supply 11. Working environment: 0 - 40 degrees Celsius, 10 - 80%RH 12. Storage environment: -10 - 50 degrees Celsius, 10 - 70%RH 13. Power-on self-test time: about 4 seconds 14. Applicable scenarios: noise measurement indoors and outdoors, electrical appliances, cars, libraries, construction sites, etc. 15. Size: about 23.5 x 7 x 3cm 16. Weight: about 380g Features: 1. USB data connection, real-time data sampling analysis and download storage printing after connecting to the computer 2. The high-precision probe is made of pure copper plating material, equipped with a windproof and noise-reducing ball, which is more stable and accurate 3. Hidden bracket design, external tripod bracket can be connected to facilitate viewing data 4. 5 measurement gears are optional, highly targeted 5. External power supply, AC/DC analog signal output jack packing list: - Host x 1 - Cloth bag x 1 - Instructions x 1 - USB cable x 1
1. 传感器：1/2英寸电容式麦克风 2. 测量范围：40-130dB 3. 测量精确度：约2dB 4. 频率响应：31.5Hz-8.5KHz 5. 频率加权特性：A和C特性 6. 分辨率：4位数，解析度0.1dB 7. 动态特性选择：Fast / Slow 8. 自动关机：约10分钟后 9. 取样率：约2次/秒 10. 电源：1 x 6F22 9V电池（不含）或DC 9V 100mA直流电源 11. 工作环境：0 - 40摄氏度，10 - 80%RH 12. 存储环境：-10 - 50摄氏度，10 - 70%RH 13. 开机自检时间：约4秒 14. 适用场景：室内外、电器、车内、图书馆、施工现场等噪音测量 15. 尺寸：约23.5 x 7 x 3cm 16. 重量：约380g 特点： 1. USB数据连接，连接电脑后数据实时采样分析及下载存储打印 2. 高精度探头采用纯铜电镀材质，配有防风消噪球测里更稳定准确 3. 隐藏式支架设计，可外接三角支架，方便查看数据 4. 5个测量档位可选，针对性强 5. 可外接电源，AC/DC类比信号输出插孔 包装清单： - 主机 x 1 - 布包 x 1 - 说明书 x 1 - USB数据线 x 1
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