The main features of Aihua noise testing instruments:

1. High-precision measurement: Aihua's noise testing instruments use high-quality microphones and high-performance circuits to ensure the accuracy of measurement results.

2. Multiple function options: Aihua’s noise testing instruments can choose different functions according to actual needs, such as sound spectrum analysis, noise dose measurement, etc.

3. User-friendly operation interface: Aihua's noise testing instruments are designed with a simple and clear operation interface to facilitate users to get started quickly.

4. Portability: Aihua’s noise testing instruments are small in size and light in weight, making it convenient for users to conduct on-site measurements.

5. Durability: Aihua's noise test instruments are made of high-quality materials and have good drop resistance, waterproof and dustproof properties to ensure service life.

In short, Aihua's noise testing instruments can provide users with accurate, convenient and durable noise measurement solutions. Whether measuring indoor noise levels in a home environment or conducting professional noise monitoring in construction, transportation, industry and other fields, Aihua's noise testing instruments are a trustworthy choice.