| Configuration | AWA5661-1 | AWA5661-1A | AWA5661-1B | AWA5661-1C |
| Characteristic | Precision pulse | Broad band | Low noise measurement | High noise measurement |
| Execution standard | GB/T 3785-2010/IEC 61672-1:2013 class 1 | |||
| Microphone model | AWA14425 | AWA14423 | AWA14411 | AWA14435 |
| Microphone sensitivity level | -30 dB | -28 dB | -22 dB | -50 dB |
| Measurement limit | >140 dB | >138 dB | >132 dB | >160 dB |
| Authigenic noise | <17 dB(A) | <15 dB(A) | <9 dB(A) | <37 dB(A) |
| Right of frequency meter | A、C、Z、B | |||
| Frequency range | 10 Hz~16 kHz | 10 Hz~20 kHz | 10 Hz~16 kHz | |
| Time weighting | F、S、I、Peak | |||
| Display | 128 x 64 LED lattice | |||
| Output interface | AC、DC、RS232、PWM | |||
| Integral function | No | |||
| Main measurement index | Lp、Lmax、Lpeak | |||
| Transfinite instructions | Yes, the limit can be set | |||
| Storage function | No | |||
| Recording and recording function | No | |||
| Statistical analysis function | No | |||
| Working temperature | -15℃~50℃ | |||