Features Accurate Noise Measurement - Achieve precise readings with the AS824 Digital Sound Level Meter, ensuring reliable and consistent results for all your sound testing needs Instantaneous Sound Measurement - Benefit from the real-time sound measurement function, allowing you to capture fluctuations in noise levels immediately for effective monitoring Wide Measurement Range - Experience versatility with a measurement range of 0-130 dB, making it ideal for various environments, from quiet offices to loud construction sites Dual Weighting Options - Choose between A and C weighting for tailored sound analysis, ensuring accurate assessments for different audio frequencies and environments Versatile Output Compatibility - Connect seamlessly to AC and DC signed outputs, supporting use with frequency analyzers, FFT analyzers, and graphic recorders for comprehensive sound analysis Features: 1、100% and . 2、This meter has instantaneous sound measure function. 3、The measurement range is 0-130 dB 4、It has two equivalent weighted sound prure levels, A and C. 5、Suitable for AC and DC signed output for frequency analyzer level re corder, FFT analyzer, graphic recorder etc. Specification: Features: 1. 100% and 2. This meter has instantaneous sound measure function. 3. The measurement range is 0？130 dB 4. It has two equivalent weighted sound prure levels, A and C. 5. Suitable for AC and DC signed output for frequency analyzer level re corder, FFT analyzer, graphic recorder etc. Specification: Condition: 100% Brand: SMART SENSOR Model: AS824 Accuracy: ±1.5 dB(under reference conditions) Frequency range: 31.5 Hz to 8.5KHz Linearity range: 50dB Measuring level: 30？130dBA,35？130dBC Frequency weighting: A,C Digital display: 5 digits Resolution: 0.1dB Display: 0.5 secretary Bar graph: 50 dB scale at 1 dB step for monitoring current sound prure level display period: 50 mS Level ranges: 30？80 dB; 50？100dB; 60？110dB; 80？130dB; Over indicate over range: Under indicate l than lower limit of the range. AC output:0.707 Vrms at FS output impendance approx 600Ω DC output:10 mV/dB output impedance approx 100Ω Time weighting: Fast/Slow Microphone: 1/2 inch Electret Condenser microphone Max: Maximum hold Power supply: 9V battery(not included) orDC9V 100mA Self calibration time: 10 sec(every turn on) Operating Temperature: 0℃ to 40℃ Operating Humidity: 10% to 80% RH Storage Temperature: ？10℃ to 60℃ Storage Humidity:10% to 70% RH Weight: Approx. 664g / 23.4oz Size: Approx. 224 * 66 * / 8.8 * 2.6 * 1.3in Package List: 1 * Digital Sound Level Meter 1 * Power Supply DC 9V Cable Note: N Package List