Radioshack 33-2055 digital SPL meter в Светлогорске

DIGITAL SPL METER - Цифровой измеритель уровня звукового давления RADIOSHACK. Незаменимая вещь для соревнований по автозвуку и изготовлении и настройке акустических систем, озвучивании и контроле уровня громкости на концертах и дискотеках. Питание от батарейки крона.
Новый, в комплекте чехол, батарейка, 2 инструкции (1 на русском) и оригинальная коробочка. Продаётся за ненадобностью.
Характеристики на английском:
It measures the level of the sound pressure generated by a musical instrument, a stereo system or an angry mother-in-law, by means of a built-in microphone
It has a fully adjustable sensitivity range, from 50 to 126 dB
It has a 3-digit display which shows both the average and peak sound pressure level (up to you to decide which one to measure)
it has a 21-bar analog bargraph which gives you a visual representation of the measured sound
It measures the integrated averaging (over a period of time) and holds the max peak.
It lets you choose between Weighted A and C measurements (more on this later)
It lets you choose a "fast" or "slow" bargraph response
It can be easily attached to a tripod for easier "standing" measurements.
It has an analog line output (mic out) to connect it to a stereo system or PC
Plus, it has several other functions, an useful small bag for safer transport and a CAL input for precise lab calibration. Here are the most relevant tech specs:
Microphone type: Electret Condenser
Range: 50 - 126 dB
Accuracy: ± 2 dB @ 114 dB
Reference 0 dB = 0. 0002 MicroBar
Weighting: A and C
Signal output: 1 Volt (peak-peak min. )
Impedance: 10 kOhms (min. load)
Distortion: Less than 2% at 1 kHz.
Power: 9 Volts battery
Size (approx): (H x W x D): 6" x 2" x 2" - 159 x 64 x 44 mm
Weight: 5. 8 oz - 165 grams