Total Measurement range

20 dB(A)〜143 dB(A); 25 dB(C)〜143 dB (C); 30 dB(Z)〜143 dB (Z)

Internal noise

< 18 dB(A) Leq

microphone and preamplifier sensitivity

-28 dB Note: Sensitivity is referenced at 0 dB with 1V/Pa. Unless otherwise specified below, all references to sensitivity pertain to the standard configuration.

Frequency range

10 Hz～20 kHz

Weighting filters

Parallel A, C, Z weighting

Time constants

Parallel F (fast), S (slow), I (impulse)

Exchange rates

3, 4, 5, 6

Measurement Time

1 second to 96 hours

Total value integration

Peak C Sound Level Measurement Range: 60 dB~146 dB Measurement Indicators: Lxyp, Lxeq,t, Lxeq,T, Lxmax, Lxmin, LxN, Lxpeak, SEL, SD Note: x represents A, C, Z; y represents F, S, I; N represent5,10, 50, 90, 95

Statistics (Optional)

Analysis Mode: Single, 24hours. Statistical Analysis Indicators: Lxyp, Lxeq,T, Lxmax, Lxmin, LxN, SD, SEL. 24h Mode Analysis Indicators: Lxyinst, Lxeq,T, Lxmax, Lxmin, LxN, SD, SEL, Ld, Ln, Ldn; Note 1: x represents A, C, Z; y represents F, S, I; N represents 5, 10, 50, 90, 95(customize up to 10 values between 1 to 99)

1/1 octave (Optional)

Filter Type: Parallel (real-time) octave, G=10^(3/10). Complies with Standards: Class 1: IEC 61260：1995, MOD; Filter Center Frequencies: From 8 Hz up to 16 kHz Time Weighting: Fast (F) and Slow (S). Real-time Analysis: Parallel computation of all center frequencies with A, C, Z weightings. Dynamic Range: Greater than 90 dB (Z). Main Measurement Indicators: Instantaneous Sound Pressure Level (Lp) in bands, Maximum (Max), Minimum (Min), and Equivalent Continuous Sound Pressure Level (Leq,T).

1/3 octave (Optional)

Filter Type: Parallel (real-time) one-third octave, G=10^(3/10). Complies with Standards: Class 1: IEC 61260：1995, MOD; Filter Center Frequencies: From 5 Hz up to 20 kHz. Time Weighting: Fast (F) and Slow (S). Real-time Analysis: Parallel computation of all center frequencies with A, C, Z weightings, including custom frequency weightings. Dynamic Range: Greater than 90 dB (Z). Main Measurement Indicators: Instantaneous Sound Pressure Level (Lp) in bands, Maximum (Max), Minimum (Min), and Equivalent Continuous Sound Pressure Level (Leq,T).

FFT (Optional)

Pre-FFT Weighting: A, C, Z weightings. Time Weighting: Fast (F) and Slow (S), optional. FFT Analysis Lines: up to 3385 lines. Analysis Frequency Upper Limit: up to 20k Hz Bandwidth per Line Bp: 5.9 Hz Window Functions: Flat-top, Hanning, and Rectangular windows selectable. Measurement Indicators: Fast time-weighted instantaneous values under each spectrum line, slow time-weighted instantaneous values, maximum and minimum sound pressure levels (Max/Min) under the spectrum line, and equivalent continuous sound pressure level (Leq,T), with measurement duration (Tm).

Reverberation time (Optional)

ISO 3382-2:2008;

STIPA (Optional)

- IEC 60268-16;ISO 3382-1; ISO 3382-2; ISO 3382-3; ISO 1996; - Measurement Indices：Leq、MTI、STI； - Single Record Time：15 s； - Recording Precision: Sampling rate 48 kHz, 32-bit; - Frequency Points: 125 Hz, 250 Hz, 500 Hz, 1000 Hz, 2000 Hz, 4000 Hz, 8000 Hz;

Audio recording

- Selectable Sampling Rates: 24000 Hz or 48000 Hz; - 24-bit precision, WAV format; - Recording time is unlimited until memory is full (when recording continuously, the recording files are split into one file per hour); - Recordings can be played back on the device or on a PC;

Voice coments

Yes