SMART SENSOR AS824 Handheld Larger LCD Screen Display Digital Sound Level Meter
Noise Decibel Meter 30~130 dB Noise Meter
Features：
1. This unit was designedaccording to the IEC651 TYPE2 & ANSI S1.4 type2 for sound level meters
2. Instantaneous sound measure function
3. Measurement range: 30-130decibel
4. With two equivalent weighted sound pressure levels. A and C
5. Fast & Slow dynamic characteristic modes
6. AC and DCsigned output for requency analyzer level recorder, FFT analyzer, graphic recorder etc.
Specifications：
Material
ABS Plastic
Digit & Resolution
5 digits & 0.1dB Display: 0.5 secretary
Measuring Range
30~130dBA 35~135dBC
Accuracy
±1.5dB
Frequency Range
31.5Hz to 8.5K Hz
Linearity Range
50dB
Frequency Weighting
A, C
Microphone
1/2 inch Condenser Microphone
Standard
According to IEC651 TYPE 2 & ANSIS1.4 TYPE 2
Time Weighting
Fast / SLow
Bar Graph
50 dB scale at 1 dB step fro monitoring
current sound pressure level display period: 50mS
Level Ranges
30-80dB; 50-100dB; 60-110 dB; 80-130dB
Over Indicate Over Range
Under indicate less than lower limit for the range
AC Output
0.707 Vrms at FS output impendance approx 600 ohm
DC Output
10mV / dB output impedance approx 100 ohm
Max: Maximum Hold / Auto Power Off
√
External Power Supply
√
Level Range Bar Graph
√
Range Selection
4 modes
Range Over Indication / Battery Indication
√
Backlight Display / Max & Min Hold Function
√
Sampling Frequency
2 times / sec
Self Calibration Time
10 secs(every turn on)
Operating Condition
Temperature :0-40C ; Humidity: 10% to 80%RH
Storage Condition
Temperature: -10 to 60C ; Humidity: 10% to 70% RH
Logistics information
Our products are located in Hong Kong, China, and the logistics speed depends on your specific location. According to our experience, it usually takes about 15-20 days of transportation time
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How to choose the correct size:
Step 1 Please measure your foot length carefully.
Step 2 Please choose the correct size according to your foot length and chinese size.
For example, If your foot length is 255 mm , you should choose the size 8.
