Medidor de nivel de sonido digital, medidor de sonido para aula, hogar, calle, medidor de 30-130 dBA dB para medir ruido, lector de decibelios de ruido, probador de sonido de audio, equipo de prueba de sonido, dispositivo de medición de sonido (30-130 dBA)

Descripción

Product description Summary Eliminate doubts and solve difficulties Problem 1: DB was not detected where I needed it? Answer:This product is designed for environmental noise measurement (30-130 dB), but some users mistakenly use it for extremely low or high frequency sound sources (such as electrical micro noise, ultrasonic equipment), resulting in no readings. This is a misunderstanding of the usage scenario, not a device malfunction. Problem 2: Inaccurate/inaccurate readings? Answer:Under laboratory conditions, testing with a standard sound source calibrator (NTi Audio XL2+speaker system) showed an error range of ± 1.5 dB, in compliance with IEC 61672-1 Class 2 standard. The customer's claim of "inaccuracy" is mainly due to background interference, improper distance, or lack of zero calibration. Problem 3:Not suitable for the room? Answer:It is speculated that the user expects it to be used for monitoring quiet home environments (such as baby rooms, study rooms), but this model is more suitable for noise assessment in industrial, building, or public places. Problem 4:Is it not sensitive at all? Answer:The sensitivity measurement reaches 40mV/Pa @ 1kHz, and the performance of the polarizer microphone meets the standard. The so-called 'insensitivity' often occurs at a distance (>5 meters) or when the direction deviates from the main axis. Belongs to normal physical attenuation phenomenon, not a defect Problem 5:Large reading fluctuations/display jumps? Dynamic environments (such as traffic noise and intermittent machine operation) should reflect real changes; If there is abnormal jumping in a static environment, it may be caused by insufficient battery voltage or microphone moisture. Function The noise meter is the use of environmental sound level instrument, can be widely used in such as factories,workshops,schools,residential, office areas, traffic roads, audio and other occasions of sound level measurement.Also suitable for noise engineering, product quality control, health prevention and control. Features A Weighted network (automatic switching range display) F/S (fast/slow mode selection)Maximum (MAX) measurement Minimum value (MIN) measurement The measurement result (HOLD) functionSound level OVER or UNDER indicates LCD with Backlight Auto Power Off functionLow-battery indicator Reference Structure Design Front LCD backlight display, the instrument can also be used normally at night and in dark placesSilicone button, more durable Back Powered by 3 AAA batteries, easy to buy Side The concave convex anti slip design on the side makes it hard to fall when holding Technical Index Frequency Response 31.5Hz~8KHz Measuring Range 30~130dB Accuracy ±1.5dB（94dB@1KHz） Display Resolution 0.1dB Frequency weighting A sound level frequency meter weight Battery 3*1.5V AAA Operating Temperature 0~+40℃ Operating Humidity 10~75%RH Boundary Dimension 150x52x30mm Weight 102g See More

Características

• 【Widely Used】The noise meter is the use of environmental sound level instrument, can be widely used in such as factories, workshops, schools, residential, office areas, traffic roads, audio and other occasions of sound level measurement. Also suitable for noise engineering, product quality control, health,prevention and control.
• 【Accurate Measurement】Measuring Range:30~130dB ;Accuracy:±1.5dB（94dB@1KHz）;Display Resolution:0.1dB
• 【A Weighted Measurement】 A Weighted network (automatic switching range display)
• 【Fast/Slow mode selection】Press the MODE key, you can convert the response speed of the noise meter, FAST fast, SLOW slow
• 【MAX/MIN Measurement】Press RANGE key to measure the maximum value of MAX and minimum value of MIN.A maximum duration of more than 3 seconds is recorded, with a normal test sampling rate of 0.5 seconds. The maximum error is ± 5%.
• 【Result Hold】The measurement result (HOLD) function;Press the HOLD key to hold the measured sound level value
• 【Sound level OVER or UNDER indicates】If the display displays "UNDER" or "OVER" characters, the sound level is lower than 30dB or higher than 130dB.
• 【LCD with backlight】After power-on, the backlight will automatically light up and turn off after 30 seconds. Press the backlight button to turn on the backlight.

Especificaciones