Wireless Hygrograph Chart Recorder from Canada
Battery-powered hygrograph that records relative humidity levels on rotating paper charts using a hair tension or capacitive sensor mechanism. It qualifies for HTS 9025.80.40.00 as a hygrograph, a recording instrument specifically identified for humidity monitoring in labs and greenhouses.
Duty Rate — Canada → United States
11%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Demonstrate humidity recording via charts or digital output logs to avoid reclassification as non-recording hygrometers
• Specify sensor type (hair/capacity) in invoices; capacitive types may face electronics scrutiny
• For wireless models, include FCC compliance docs for radio frequency components