12104995 SM04-เครื่องวัดความดัง Decibel DB 7 Range Sound Level Audio Noise Meter

Product Description
Characteristics
Seven sound level ranges - allow measurements from 50 - 126 dB (referenced to 0.0002ubar).
A and C weightings - lets you check compilance with safety regulations as well as make acoustic analysis.
Slow and fast response settings - lets you check peak and average noise levels.
Built-in battery condition indicator.
Phono-type output jack - for connection to home theatre or test equipment.

สนใจติดต่อ
บริษัท ไฟน์เดย์ จำกัด
คุณนัน โทร. 084-421-7943

หรือดูรายละเอียดในเวบ
http://richmoto.tarad.com/product_851939_th
http://www.finedayplus.com/index.php/measure/sound-level-meter.html

Specifications
Power supply: 1 x 9v Alkaline type 6LR61 Battery (included)
Measure range:
Switch setting : from 60dB to 120dB
Range of Measurement: from 50-66dB to 110-126dB
Load Impedance: 10 kohm minimum
Distortion: Less than 2% at 1kHz, 0.5-volt
Microphone: Electret condenser omnidirectional becoming slightly directional with increase in frequency.
Accuracy: +/- 2dB @ 114dB
Standard: 0dB = 0.0002ubar
Weighting: A and C
Response: Fast and Slow
Signal Output: 1.0 volt(peak) minimum into open circuit, with full-scale meter deflection at 1kHz
Battery check: Tests "good" from 7.0 to 10.5 volts
Expected Battery Life: 110 working hours (alkaline battery)
Dimensions: 160 x 62 x 44mm
Weight : about 185g

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