Product Description
Models | CH1351 | CH1352 | CH1357 |
Measuring Range | 30~130dBA | 30~130dBA | 30~130dBA; 35~130dBC |
Accuracy | ±1.5dB | ±1.5dB | ±1.5dB |
Digit&Resolution | 4 bit&0.1dB | 0.1dB | 4 bit&0.1dB |
Frequency Response | 31.5Hz~8.5KHz | 31.5Hz~8KHz | 31.5Hz~8KHz |
Measuring Level | × | × | 30~80,50~100,60~110,80-130,30~130 |
Frequency Weighting Features | A | A | A&C |
Time Weighting | × | × | FAST/SLOW |
Display Sampling Frequency | 2 times/sec. | 2 times/sec. | 2 times/sec. |
Microphone | 1/2 Inch Polarization Capacitance Microphone | 1/2 Inch Polarization Capacitance Microphone | 1/2 Inch Polarization Capacitance Microphone |
USB Interface | × | × | × |
AC/PWM Output | × | × | × |
AC/DC Output | × | × | √ |
LCD Backlight Function | √ | √ | √ |
Max Reading | √ | √ | √ |
Overload Indication | × | × | OVER/UNDER |
Low Battery Indication | √ | √ | √ |
Manual/auto Shut off | √ | √ | √ |
Unit Size | 57*36*149MM | 57*36*149MM | 70*35*256MM |
Standard Quantity Per Carton | 60PCS | 60PCS | 20PCS |
Standard Carton Size | 50.5*33.7*45.05CM | 50.5*33.7*45.05CM | 67.5*45.8*30.2CM |
Standard Carton Gross Weight | 13.3KG | 8.58KG | 19.8KG |
Power | 9V Battery | 3*1.5V AAA Batteries | 1.5V or DC 6V 100mA batteries |