Crysound - Model CRY2851 -Sound Level Meter

Application

• Noise measurement
• Environment noise assessment
• Product EOL noise control
• Occupational noise assessment

Feature

• Single measurement range:19-135dB(A) from noise floor to maximum level
• Support SD Card
• Ethernet/Bluetooth/WiFi for remote control and data transfer
• GPS for time and position
• 1/1,1/3 octave and Frequency analysis

Physical

• Dimension : L*W*H=260mm*90mm*40mm
• Weight : 460g
• Operation
• Touch /Button

Power Supply

• Battery : 6600mAh lithium battery
• Operation Time : 9.5h(max brightness,BT and WiFi)
• Charging Time : 4h (2A input current)
• External Power Supply : USB Type C
• USB input voltage :5V DC
• USB input current :>1.5A

Calibration Environment

• Reference Level : 94dB@1kHz/114dB@1kHz
• Calibration :Sound Calibrator Class 1
• Environment :Temperature 23°C
• Pressure 101.325kPa
• Humility 50% RH
• Operation Condition :
• Temperature -10~+50?,
• Pressure 65kPa-108kPa
• Humility ≤90%RH

Specification

• Microphone
• Sensor : CRY333 free-field 1/2" microphone
• Open circuit sensitivity :
• 50mV/Pa(-26dB re 1 V/Pa)±2dB
• Frequency range : 3.15Hz~20kHz(±2dB)
• Noise floor : ≤18dB(250Hz))
• Standard
• Standard :
• GB/T3785.1-2010 Class 1
• IEC61672-1: 2013 Class 1
• Technical Specification
• Weighting :
• Frequency Weighting: A?C?Z
• Time Weighting: F?S
• Frequency Range : 10Hz-20kHz
• Measuring Parameter : Lp, Lmax, Lmin, Leq, Lpeak,  LN(1-99), SD, Ldn, Ld, Ln, EA, LAE(SEL), 1/1 OCT, 1/3 OCT, FFT
• Single measurement range (from noise floor to maximum level)
• CRY333 Mic: 19-135dBA
• CRY311 Mic: 12.5-129dBA