SANFIX GM1356 Digital Sound Level Meter

SANFIX GM1356 Digital Sound Level Meter

Features
• Electret Condensor Microphone.
• LCD display.
• Power switch.
• Level range control switch : 30dB – 80dB, 50dB – 100dB, 60dB – 110dB, 80dB – 130dB, 30dB – 130dB.
• Maximum value hold switch (MAX).
• Equivalent weight select switch :
- A : A weight for general sound level measurements.
- C : C weight for checking the low frequency content of noise.
• Time weight select switch :
- Fast : For normal measurements.
- Slow : For checking average level of fluctuating noise.
• AC output terminal : 0.707 Vrms Corresponding to each range step.
• DC output terminal : output 10 mV/dB.
• Calibration control.
• External DC 6V power supply terminal.
• Tripod mounting screw.
• Windscreen.
Specification
Measurement range : 30 – 130dBA, 35 – 130dBC
Frequency response : 31.5Hz – 8.5kHz
Measuring level : 30dB – 80dB, 50dB – 100dB, 60dB – 110dB, 80dB – 130dB, 30dB – 130dB
Linearity range : 50dB/100dB
Frequency weighting : A/C
Data record function : 4700 data
USB function : Connect with the PC through USB, provides data record downloading, real-time data sampling analysis, printing graph & data function.
Calendar function : √
Calibration sound source : 94dB @1kHz
AC signal output : 4Vrms/full bar graph, output impedance is about 600 ohm.
Digital display : 4 digits
Sampling rate : FAST : 8 times/second; SLOW : 2 times/second
Auto power off : ½ inch polarization condenser microphone
Self calibration : 3s
Operation condition : 0 - 40°C, 10 – 80% RH
Power supply : 4 x 1.5V Alkaline battery
Dimension : 256 x 70 x 36mm