Stack Gas Flow and Velocity Monitor烟气流量和流速监测仪
- Velocity range
- 0.5–40 m/s
- Accuracy
- ±2% of reading (after calibration)
噪声监测设备

Photo for reference; configuration may vary by order.
Model No. NOM-0004 · Environmental Testing Equipment
倍频程声学分析仪
When a single dB(A) number is not enough to find the source of a hum or a whine, frequency detail is what you need. This analyzer combines IEC 61260-1 Class 1 third-octave filters (6.3 Hz–20 kHz) with 400–6400 line FFT. Let us know whether you need one channel or up to four.
| Place of origin | China (dispatched from Shanghai) |
|---|---|
| Brand | Liquid International / OEM on request |
| Export packing | Fumigation-free plywood case or reinforced carton |
| Loading port | Shanghai / Ningbo (others on request) |
| Payment terms | T/T, L/C at sight (confirmed on quotation) |
| Trade terms | EXW, FOB, CFR, CIF, DAP |
Typical export terms — final terms are confirmed on the proforma invoice.
When a single dB(A) number is not enough to find the source of a hum or a whine, frequency detail is what you need. This analyzer combines IEC 61260-1 Class 1 third-octave filters (6.3 Hz–20 kHz) with 400–6400 line FFT. Let us know whether you need one channel or up to four.
| Parameter | Value |
|---|---|
| Filter class 滤波器等级 | IEC 61260-1 Class 1 |
| Band range 频带范围 | 6.3 Hz–20 kHz (1/3 octave) |
| FFT lines FFT 谱线 | 400–6400 |
| Measurement range 测量范围 | 20–140 dB(A) |
| Sound level class 声级计等级 | IEC 61672-1 Class 1 |
| Channels 通道数 | 1–4 |
| Reverberation time 混响时间 | T20, T30, EDT |
| Display 显示屏 | 5–7 inch color touchscreen |
| Storage 存储 | SD card or internal 32 GB |
| Battery life 电池续航 | Up to 10 h |
| Model No. | NOM-0004 |
| Place of origin | China (dispatched from Shanghai) |
Chinese national standards (GB/T, JJG) and international standards referenced for this product type. Test reports and certificates are supplied with the quotation on request.
Fumigation-free plywood case or reinforced carton
Every unit is power-tested before packing; enclosed in shock foam and moisture barrier; wooden cases comply with ISPM 15.
Shanghai / Ningbo (others on request)
Full container load (FCL), less-than-container load (LCL) or air freight; complete export documentation provided.
Complete the form below — an export engineer will send technical configurations and a formal proforma invoice within 24 hours.
Single instruments, complete laboratories or government tenders — our export engineers prepare the configuration, proforma invoice and shipping documents.