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E-mail
992730650@qq.com
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Phone
13801206817
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Address
Room 1280, 2nd Floor, Building 12, No. 4 Anningzhuang Road, Xisanqi, Haidian District, Beijing
Beijing Jinghaiming Electronic Technology Research Institute
992730650@qq.com
13801206817
Room 1280, 2nd Floor, Building 12, No. 4 Anningzhuang Road, Xisanqi, Haidian District, Beijing
Noise detection, display, sound and light alarm system
1、 Function implementation:
Collect on-site noise andLEDThe display screen displays the noise value in real-time and divides the noise value into2Display and process files(The gear threshold can be set by oneself):
aQuiet scene less than60Decibel, in this state, the screen displays the noise value in green.
bThe noise level in the noisy scene is greater than60Decibel and less than70Decibel, displayed in this stateThe screen noise value is displayed in red font to alert the surrounding crowd.
two Product Composition
P4Outdoor full-color display screen size30cm×17cmX6.5cm.,.
JHM-NS02Noise sensors,AweightedFASTMode, measurement range30-130dB.
Three plugs are sufficient for display, and the display content, display items, and alarm values of the screen can be customized
Appendix1
noiseCalculate parameters
| Product Model | JHM-NS02 |
| Specifications | 80mmX25mm |
| accuracy | +/- 1.5dB |
| Conversion accuracy | 0.1dB |
| output mode | RS232interfaceASIICCode output |
| AWeighted measurement range | 30dB to 130dB |
| frequency response | 20Hz to 20KHz |
| Frequency weighting characteristic | AWeighted characteristics |
| Dynamic characteristic time weighting | FAST |
| Power standard | DC9V |
| manufacturer | Beijing Jinghaiming Electronic Technology Research Institute |


Beijing Jinghaiming Electronic Technology Research Institute