Alion fortune HK Limited
Alion fortune HK Limited GM1357 engineering development tool 30-130 dBA 35-130 dBC
Measures sound pressure from 30 to 130 dBA and 35 to 130 dBC with ±1.5 dB accuracy, A/C weighting and fast/slow time response
- TypeEngineering Development Tools
- Measures 30 to 130 dBA and 35 to 130 dBC for wide noise coverage
- Accuracy within ±1.5 dB with 0.1 dB resolution for reliable readings
- A and C frequency weighting plus Fast and Slow time weighting for versatile analysis
- AC/DC output enables data logging and external recording
- Auto power off with cancel option and low battery indication extend field use
Sound Level Meter 30-130 dBA
The Alion fortune HK Limited GM1357 is a digital sound level meter designed for engineering development and noise assessment tasks. It measures A-weighted levels from 30 to 130 dBA and C-weighted levels from 35 to 130 dBC with a stated accuracy of +/- 1.5 dB. The instrument conforms to IEC 651 Type 2 and ANSI S1.4 Type 2 standards. A 1/2 inch polarization capacitance microphone captures sound across a 31.5 Hz to 8.5 kHz frequency range.
Technicians needing Class 2 compliance.
This meter suits professionals conducting environmental noise surveys, industrial hygiene checks, or product validation where Type 2 tolerance is accepted. The five selectable measuring ranges from 30-130 up to 80-130 allow flexible gain staging. It is not for buyers who need Class 1 precision or laboratory-grade traceability tighter than the specified +/- 1.5 dB. Users requiring real-time data logging or computer connectivity should look at instruments offering those interfaces.
Accuracy +/- 1.5 dB defines suitability
The single specification that decides fit is the +/- 1.5 dB accuracy claim under IEC 651 and ANSI S1.4 Type 2 standards. If your procedure mandates a tighter tolerance, this model will not meet the requirement. If Type 2 tolerance is acceptable, the 0.1 dB resolution, FAST and SLOW time weightings, and dual A/C frequency weighting support typical compliance measurements. Power comes from four AA batteries or a 6 V DC adapter, neither included.
จุดเด่น
- Measures 30 to 130 dBA and 35 to 130 dBC for wide noise coverage
- Accuracy within ±1.5 dB with 0.1 dB resolution for reliable readings
- A and C frequency weighting plus Fast and Slow time weighting for versatile analysis
- AC/DC output enables data logging and external recording
- Auto power off with cancel option and low battery indication extend field use
ข้อมูลจำเพาะ
| Type | Engineering Development Tools |
|---|
คำถามเกี่ยวกับสินค้านี้
How much power does the GM1357 draw when it runs continuously?
It operates on four 1.5 V AA batteries or a DC 6 V 100 mA adapter; batteries are not included.
What extra equipment is required before the GM1357 can take measurements?
You must supply four AA batteries or a 6 V DC adapter; no other accessories are needed.
Will the GM1357 work with older 1/2-inch polarised condenser microphones I already own?
The meter has a built-in 1/2 inch polarisation capacitance microphone and does not accept external microphone modules.
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