Testing items：NoiseSound detectorIt adopts industrial standardsnoise sensorDesigned for the noise testing needs of industrial sites,Compatible with monitoring systems to pinpoint noiseAt any time24-hour monitoring. Can be widely used in warehouses, computer rooms, production workshops, archivesFields such as libraries, schools, shopping malls, smart homes, building control, train stations, etc.

Performance characteristics:

1true color4-inch touch screen with Chinese display.engineering plasticBody defenseWater gradeIP65.Equipped with high-strength precision aluminum alloy chassis for easy portability.

2Communication interface:USBInterface, wirelessGPRStransmissioninterfaceandRJ45Interface (optional).

3. Networking methods: handheld offline, handheldGPRSThere are two ways to do it online.

4. Data collection: Local data collection can adoptautomaticandManual collectionTwo ways.

5. Data query: local machineCan be viewedhistorydataTest records can also be deleted.

6. Camera function:Expandable camera functionThe instrument acquisition interface has a photo button, which enables manual and automatic photography, and the photos can be transmitted to the upper computer for viewing, analysis, and saving (optional).

7. Multi channel data acquisition: can expand multiple sensor data conversion interfaces.

8. Settings interface:Can set screen brightness, sleep time, collection time, soil type, GPS switch, voicevolumeNetworking methodandServer'sIP address and its port numberPower off does not lose the set parameters.

9Wireless network transmission: utilizing built-in wireless technologyGPRSModule, on-site integrationdatafarCheng transfers toServer cloudIntelligent detection software has achievedMulti parameter and multifunctionalIn situ online detection.

10. Extended functions:Expandable GPS positioning function,Photography function,Voice functionAnd this function can be turned off to save energy.

11. Equipped with a high-power lithium battery pack for power supply, the screen has a power display function. Equipped with automatic protection circuit and automatic charger.

12. Acquisition software: Equipped with computer software, the acquisition software automatically recognizes the instrument through an international USB interface and can upload and save the data stored on the machine to the computer.

noiseSensor parameters

Supply voltage: defaultDC12V； Optional DC24V or DC5V

Measurement range:30dB to 130dB (automatic shifting)

Sampling frequency: One second acquisition500 times

Output frequency:RS232 signal twice a second, RS485 signal once a second, analog continuous output

Output mode:RS232- ASIIC code output, RS485 Modbus protocol, analog quantity: current or voltage

Measurement error:+/-1.5dB (2Khz80dB point correction)

Conversion accuracy:0.1dB

Frequency weighting characteristics: A weighted characteristic

Dynamics: FAST

Response time: less than2 seconds

Frequency response:35 Hz to 20KHz

Product size: diameterM24mm length 80mm, output line length 2.0m