Chapter 90 covers optical, photographic, cinematographic, measuring, checking, medical or surgical instruments and apparatus, precision instruments and apparatus, and parts and accessories thereof. This chapter has a broad scope, ranging from simple lenses to complex electronic measuring instruments. The core characteristic is that these goods are typically used for measuring, detecting, analyzing, or controlling, rather than for mere mechanical movement or energy conversion. This chapter also includes instruments for measuring or checking, such as exposure meters, tachometers, etc. Heading 9027 covers instruments and apparatus for physical or chemical analysis, measuring or checking, such as spectrometers, chromatographs, exposure meters, tachometers, etc. This heading includes laboratory and industrial measuring instruments, but excludes medical or surgical instruments (heading 9018). Exposure meters are optical measuring instruments used to determine light intensity or exposure, whether handheld or vehicle-mounted, and are classified under this heading. First 2 digits 90: represents Chapter 90, i.e., optical, photographic, measuring, checking, medical, etc., instruments and apparatus. Digits 3-4 27: represents heading 9027, specifically instruments and apparatus for physical or chemical analysis, measuring or checking. Digits 5-6 40: represents subheading 902740, i.e., exposure meters. Therefore, 902740 in full means 'exposure meters', including vehicle-mounted exposure meters. This subheading is not further subdivided; all types of exposure meters are classified under this code. Vehicle-mounted exposure meters are used to measure light intensity or exposure and are optical measuring instruments. Their function matches the description of heading 9027 'measuring or checking instruments', and the specific subheading 902740 explicitly lists 'exposure meters'. Therefore, they are classified under 902740, rather than other measuring instruments (such as other subheadings of 9027) or photographic equipment (such as 9006).

Product Name: The Chinese and English names of the declared commodity should accurately reflect the characteristics of the goods, such as 'vehicle-mounted exposure meter'. Use: Explain the specific application scenarios of the commodity, such as automatic adjustment of automobile headlights, photographic exposure control, etc. Working Principle: Briefly describe the measurement principle, such as photoelectric sensors, photoresistors, etc., and the type of output signal. Brand: Fill in the brand of the commodity; if no brand, fill in 'no brand'. Model: Fill in the model of the commodity to facilitate identification of specific specifications. Vehicle-mounted Dedicated: Clearly indicate whether it is designed for vehicles, such as vehicle-mounted exposure meters should be filled as 'yes'. Measurement Range: Fill in the measurement range of the exposure meter, such as illuminance range (lux). Output Signal Type: Such as analog voltage, digital signal, etc., used to determine whether it is integrated with other equipment. Customs declaration example: Product Name: Vehicle-mounted exposure meter Use: For automatic automobile headlight control, measuring ambient light intensity Working Principle: Photodiode senses light, outputs analog voltage signal Brand: Valeo Model: EX-2025 Vehicle-mounted Dedicated: Yes Measurement Range: 0-100,000 lux Output Signal Type: 0-5V analog voltage This commodity is classified under HS code 902740. Misclassifying vehicle-mounted exposure meters under other subheadings of 9027, such as 902730 (spectrometers) or 902750 (other optical instruments), ignoring the dedicated subheading for exposure meters. Not distinguishing between vehicle-mounted and general exposure meters; if vehicle-mounted dedicated but not indicated, it may affect classification. Not providing the working principle during declaration, causing customs to be unable to determine whether it is a measuring instrument.

Core basis for classification: The commodity's function is to measure light intensity or exposure, belonging to optical measuring instruments. Heading 9027 explicitly includes exposure meters, and subheading 902740 specifically refers to exposure meters. The vehicle-mounted characteristic does not change its basic function, and it is still classified under 902740. If the commodity also has other functions (such as a camera), it should be classified according to the main function. 902750 Other optical instruments: 902750 is for other instruments using optical rays (ultraviolet, visible, infrared), but exposure meters are separately named, so they are not classified here. 900630 Special cameras: 900630 is for special cameras, such as underwater, aerial, used for photography, not for measuring light. 903180 Other measuring or checking instruments: 903180 is for measuring instruments not named in other headings; exposure meters have a dedicated subheading, so they are not classified here. 902730 Spectrometers, spectrophotometers: 902730 is used for analyzing spectra, measuring wavelength and intensity, while exposure meters only measure light intensity and do not analyze spectra. 854140 Photosensitive semiconductor devices: 854140 is for photosensitive semiconductor devices, which are parts of exposure meters, not finished measuring instruments. Is the commodity used to measure light intensity or exposure? Is it designed for vehicle-mounted dedicated use? Does it have an independent measuring function, rather than being only a part? Is it explicitly named under 902740? Is it confused with other optical instruments (such as spectrometers) in function?

Is there a difference in HS code between vehicle-mounted exposure meters and ordinary exposure meters? No difference. HS code 902740 covers all exposure meters, whether vehicle-mounted dedicated or not. However, when declaring, it is necessary to indicate 'vehicle-mounted dedicated' so that customs can understand the characteristics of the commodity. How to query the import tax rate for 902740? You can query tariffs, value-added tax, etc., through the official website of the General Administration of Customs, China International Trade Single Window, or third-party query platforms by entering HS code 902740 and selecting the destination country and country of origin. Note that tax rates may vary due to free trade agreements. If an exposure meter has a camera function, which code should it be classified under? If the main function is exposure measurement and the camera is only auxiliary, it is still classified under 902740; if the main function is photography, it may be classified under 8525, etc. It needs to be determined based on the main function. How to fill in 'Working Principle' during declaration? It should concisely describe the measurement principle, such as 'photoelectric sensor converts light signal into electrical signal, processed by circuit and output'. Avoid being too technical, but it needs to reflect the essence of measurement. How to distinguish between 902740 and 902750? 902740 specifically refers to exposure meters, and 902750 is for other optical instruments. If the commodity is an exposure meter, it must be classified under 902740, even if it uses optical principles. Does a vehicle-mounted exposure meter exported to the EU require CE certification? Yes, as a measuring instrument, it usually needs to comply with EU EMC, LVD, and other directives, and bear the CE mark. The specifics need to be determined based on product characteristics. If the exposure meter is part of a vehicle, is it classified as a whole vehicle? If declared separately, it is classified as an exposure meter; if imported as a vehicle part with the vehicle, it may be classified as a whole vehicle. Generally, separately imported parts are declared under their respective HS codes. What is the difference between an exposure meter and a photoresistor for classification? A photoresistor is a component, classified under 8541; an exposure meter is a complete measuring instrument, classified under 9027. If the import is a photoresistor, it cannot be classified as an exposure meter.