Feature:1. With large LCD high-definition color screen display, the measurement results can be visually displayed and easy to observe.2. 90-130dB alarm level setting range, once the measured value is greater than the alarm level, it will maintain the maximum value.3. It is equipped with sponge balls and storage bags, compact in size and easy to carry.4. Support frequency analyzer level recorder, FFT analyzer, graphic recorder and other AC and DC signal output.5. It is suitable for inspecting, monitoring or controlling the sound level of individuals, families, businesses, learning, industry, etc.6. It can be used for real-time noise detection in garage, office and workshop to ensure the safety of sound environment.Specification:Condition: 100% Brand NewItem Type: Noise MeterMaterial: PlasticModel Number: AS834+Accuracy: 1.5dBFrequency Range: 31.5Hz-8.5KHzDynamic Range: 50dBMeasure Range: 30-130dBA,35-130dBCFrequency Weighting: A and C WeightingDigital Display: 4 DigitResolution: 0.1dBSampling Speed: 2 Times/SecondAnalog Bar Graph: One Bar is 1dBAC Signal Output: 0.707V rms at FSDC Signal Output: 10mV/dBTime Weighting: Fast/SlowPower Supply: 9V Battery (Battery Not Included)Operation Temperature: 0C-40C(10%-80%RH)Storage Temperature: -10C-60C(10%-70%RH)Package List:1 x Noise Meter (Battery Not Included)1 x Instruction Manual1 x Cloth BagNote:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.