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Class 2 Sound Level Meter and Calibrator
Model : ST-21D
Product : Scarlet Tech (Taiwan)
Fungsi : Alat ukur tingkat kebisingan suara dengan penyimpangan ±2dB
Spesifikasi :
▪ Range / Frequency : 28 - 133 dB / 20 Hz to 12.5 kHz
▪ Measurig Level : Z(FLAT): 38 ~ 130dB / C peak: 145dB / Z(FLAT): peak: 145dB
▪ Resoluiton : 0.1dB
▪ Frequency : A, C, Z, B
▪ Time Weighting : F, S, I, Peak
▪ Integrating time : 1s~24h
▪ Display : 128×64 OLED
▪ Parameters : LFp, LSp, LIp, Leq,t, Lpeak, Leq,T, LFmax, LFmin,
LSmax, LSmin, LImax, LImin< SEL, Lex8h, LAVG, TWA,
DOSE, Ln1, Ln2, Ln3, Ln4, Ln5, SD, Ts, Tm, Volt, E
▪ Datalogging : Stores 8000 groups measurement results
: including Timestamp, %Dose, TWA
▪ Power Supply : 4x AAA Batteries or external power supply
▪ Output interface : AC, DC, RS-232, USB interface
▪ Application : Sound Level Meter/ Noise Dosimeter/
Data logging & Audio recording
▪ Operation Environment : Air temperature: -15°C~+50 °C
: Relative humidity: 10 %~90 %
▪ Standard : IEC 61672:2013 Class 2
▪ Dimenstion/weight : 310×72×32 mm / 0.4kg
▪ Complete unit : Sound Level Meter and Windscreen
: 1/2" Prepolarized Condenser Microphone
: RS232 Cable and Mini USB cable
: Sound Calibrator 94db/ 114 dB
: Calibration Certificate and manual books
: Waterproof Carrying Case