Portable Psychrograph Recording Unit
Handheld unit with wet/dry bulb sensors that records psychrometric data (humidity calculations) on digital memory. Though psychrometers have separate provisions, this recording combo fits HTS 9025.80.40.00 as 'other recording instruments'.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If dedicated psychrometer recorders
Specific psychrometer recording provision may supersede general 'other'.
If HVAC psychrometric components
Parts of air conditioning apparatus exclude from chapter 90.
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Import Tips & Compliance
• Document psychrometric calculation algorithms to support recording classification
• Avoid 'controller' terminology to prevent 9032 reclassification
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