Adafruit KJS-1509 Adjustable Power Supply 3V-24V 2.1mm engineering development tool
- Prototyping Products
Vi tager imod kryptovaluta — så den krypto, du ejer, kan købe rigtig hardware.Betal med krypto, brug det på rigtig hardware. Gratis, forsikret levering til hele verden ved køb over 399 $. Neutrale, umærkede papkasser, sendt fra Tyskland.Gratis, forsikret levering over 399 $. Din kurs låses i 30 minutter, så snart kassen åbner.Kurs låst i 30 minutter. Hver vare er forseglet, har kontrolleret serienummer og er dækket af 24 måneders garanti.Forseglet, 24 måneders garanti.
Alion fortune HK Limited
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
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.
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.
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.
| Type | Engineering Development Tools |
|---|
It operates on four 1.5 V AA batteries or a DC 6 V 100 mA adapter; batteries are not included.
You must supply four AA batteries or a 6 V DC adapter; no other accessories are needed.
The meter has a built-in 1/2 inch polarisation capacitance microphone and does not accept external microphone modules.
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