CRYSOUND CRY2851 소음계 (21dBA~143dBA; 10Hz~20kHz)

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

Datasheet