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New USB Noise Digital Sound Pressure Level Meter Decibel Measurement 30-130dB

<ul><li>【Multiple Functions】Equipped with two equivalent weighted sound pressure levels (A and C), this meter allows for precise measurement in different environments. The fast/slow time weighting selection helps to capture both sudden changes and sustained noises.</li><li>【Easy to Use】Featuring a large 2-inch LCD display, this meter offers clear and easy-to-read readings. It also has an automatic power-off function after 10 minutes of inactivity, preserving battery life.</li><li>【Wide Application】This meter is widely used in various settings such as factories, schools, hospitals, shopping malls, hotels, theaters, offices, and homes for noise detection. It is an essential tool for noise control and measurement in different situations.</li><li>【Convenient Power Options】This meter can be powered by 4 AA batteries (not included) or through a USB cable. With a power life of approximately 20 hours, it ensures continuous and reliable operation.</li><li>【Refund&nbsp;service】support&nbsp;30&nbsp;days&nbsp;return&nbsp;and&nbsp;refund,&nbsp;after-sales&nbsp;worry-free</li></ul>

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Features:* Brand new and high quality* Made of high quality materials, sturdy and * Drawn charts and recorded data can be printed.* Accuracy up to ±1.5 dB.* Has 2 equivalent weighted sound pressure levels A and C.* Fast/slow time weighting selection.* Automatically power off after 10 minutes of inactivity.* Tested compatible with for Microsoft casement XP/Vista/7/8/10 (32-bit and 64-bit).* Widely used, it can be used in noise factories, quality control and various noise detection, such as: factories, schools, hospitals, shopping malls, hotels, theaters, offices, road traffic, homes, audio volume measurement applications in various occasions.Specification:LCD display: 4 digitsLCD screen size: 2.2 inches (55mm)Display: 0.5 secretaryMeasurement level: 30 ~ 130 dB(A) Accuracy: ±1.5 dBFrequency response: 31.5Hz～8.5kHzResolution: 0.1 dBSound level:Level 1: 30～80dBLevel 2: 50~100dBLevel 3: 60~110 decibelsLevel 4: 80~130 decibelsLevel 5: 30~130 decibelsDynamic range: 50dB/100dBFrequency weighting characteristics: A/CAnalog bar graph: 1 dB / 1 bar graphSampling rate: 20 times/second for PWM signal output: duty cycle=0.01×dB value×/3.3Dynamic characteristics (time weighting): FAST (high speed) / SLOW (low speed)Calendar accuracy: ±30 seconds/dayMicrophone: 0.5-inch polarized condenser microphonePower supply: 4 x 1.5V AA batteries (not included) or USB cablePower life: about 20 hours of continuous use (alkaline battery)Operating temperature: 0 ~ 40 °C (32 ~ 104 °F)Working humidity: ≤80% R.H.Dimensions: 25.6*7*3.5 mm/10.1*2.8*1.4 inches (approx.)Package Included:1 x professional sound level meter1 x sponge ball1 x USB cableNote: 1.The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.2.Please allow slight manual measurement deviation for the data.

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