Noise sensor, noise meter

Product Introduction
Smart lighting is an important component of smart cities. By using sensors such as temperature and humidity, illumination, noise, PM2.5, PM10, as well as communication technologies such as ZIGBEE and GPRS, the streetlights in the city are connected in series to form the Internet of Things. Based on data feedback from streetlight environmental monitoring sensors, remote centralized control and intelligent management of streetlights are achieved, providing detailed decision-making references and rapid response for urban managers, controlling energy consumption, significantly saving electricity resources, improving public lighting management level, and reducing maintenance and management costs.

Smart lighting sensor:
The noise sensor V1.0 is capable of accurately measuring sound. This instrument has a durable structure and can be used normally for several years under correct operation. Product Parameters
Measurement range: Range: 30~130dB
Output: 485 output
Accuracy (23 ± 5 ℃): ± 7dB
Frequency weighting complies with IEC 61672 type 2 standard and is calibrated under the condition of an input signal of 94dB (31.5Hz-8kHz).
Frequency range: 31.5Hz to 8kHz
Frequency weighting: A, C weighting
Time response: Fast response: T=200ms
Time response simulates the time response of the human ear.
Corrector: B&K (Bruel&kjaer), multifunctional sound calibrator, model: 4226
Microphone: Capacitor microphone.
Microphone size: 0.5 inches.
Range selection: 30~130dB
Output impedance: 200 ohms.
Power supply: DC 12V
Power loss: DC 12V: ≈ 20mW
Working temperature: 0-50 ℃ (32-122 ° F).
Working humidity:<80% relative humidity.