HS5633B sound level meter have been developed following China's new versatile sound meter criterion. HS5633B sound level meter have the following function:
Choice of frequency weighting network A or frequency weighting network C
Choice of high measuring range and low measuring range
Over load and low of measuring range indicates
Keeping measuring
Numerical indicating
Alternating current signal outputting
HS5633B can be diffusely used in measuring industrial noise such as noise caused by machines, vehicles, watercrafts and used in environment noise.
HS5633B is applicable in different domain, such as industry, environment protecting, traffic, scientific researching.

Main technical performance
2.1 Microphone
1/2"(Φ 12.7mm)testing capacitance microphone
Polarization tension: 0 V
Sensitivity: 25mV/Pa
Range of frequency: 20Hz~12.5KHz
2.2 Measure range of sound level
35dB~130dB(A) 40dB~130dB(C)
2.3 Weighting of frequency and range of frequency
Weighting A
Weighting C
Range of frequency: 20Hz~8KHz
2.4 Reference sound pressure level and adjusting inspection frequency
94 dB(A) 1000Hz
2.5 Two type of sound level setting
L(Low): 35dB~100dB(reference measuring level)>100dB over range indicate
H(High): 65dB~130dB, <65dB down range indicate, >130 over range indicate
2.6 Time weighting and "Hold" setting
F: Quick characteristics, index time constant 125ms
Hold: Keeping maximum instantaneous sound level
2.7 Electricity ourputting
Alternating current signal out putting: Maximum available Numerical value is around 2 V, outputting impedance: 600 Ω .
Direct current signal out putting: 0.35V~1.3V, changing according 0.1V/10dB, loading impedance 1MΩ .
2.8 Numerical indicate:
50mm × 20mm three and a half number LCD, resolving power 0.1dB, renew speed is around 1 time per second.
2.9 Instrument grade: According to IEC61672 standard class 2.
2.10 Sound Adjusting:
HS6020(94dB, 1000Hz)sound level Adjusting meter.
2.11 Power:
DC 7V~10V, using one PC of layer - built battery of 9V(1× 6F22), and also setting a inputting socket for outputting electricity sourcing.
2.12 Outlooking dimension:
1 × B × H: 146mm × 70 mm × 30 mm
2.13 Working environment:
Temperature: 0. C~40. C
Humidity: 25%~90%
Atmospheric pressure: 65kPa~108kPa.