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Microphone
Microphone type: CRY333
Open circuit Sensitivity: 50mV/Pa(-26dB re 1 V/Pa)±2dB
Frequency range: 3.15Hz~20kHz(±2dB)
Self-generated noise level: ≤16dBA
Technical Specification
Linear Operating Range: 21 dBA ~ 143 dBA
Frequency range: 10Hz~20kHz
Internal noise: ≤18dBA
Applicable standards: GB/T3785.1-2010 Class 1 ；IEC61672-1: 2013 Class 1
Certified: CE, CPA, CCEP
Weighting filters: Frequency weighting: A, C, Z
Time constants: Time Weighting: S, F, I
Measuring Parameter: Lp, Lmax, Lmin, Leq, Lpeak, LN(1-99), SD, EA, LAE(SEL), 1/1 OCT, 1/3 OCT, FFT
Measurement function: SLM, Statistic, 1/1Octave（16~20kHz）, 1/3Octave（10~20kHz）, FFT
Statistics: LN (L1-L99)
Communication Interfaces: Ethernet/Bluetooth/WiFi
Memory: Internal 8GB, external SD card, supports 32GB/64GB.
GPS: Time synchronization and localization
Calibration
Reference Level: 94dB@1kHz/114dB@1kHz
Calibration: Sound Calibrator Class 1
Environment: Temperature 23°C ；Pressure 101.325kPa ； Humility 50% RH
Power Supply
Battery: 6600mAh lithium battery
Operation Time: 17h(screen,BT,WiFi off）
Charging Time: 4h
External Power Supply: USB Type C
USB input voltage: 5V DC
Ambient conditions for operation
Operating temperature range: -20~+60℃
Humidity range: ≤90% RH
Physical Weight: 460g
Size: L*W*H=260mm*90mm*40mm
Display: 4-inch TFT-LCD 480(RGB)*800
Operation: Touch /Button
