Clinical thermometers are sensitive to extreme temperatures and humidity. Ensure the outer cartons are double-walled corrugated fiberboard and include desiccant silica gel packs. For large volumes, Sea Freight (FCL) is cost-effective, but for urgent medical needs, Air Freight is preferred to minimize transit time. Ensure all documentation, including the Commercial Invoice, Packing List, and Certificate of Origin, clearly states the HS Code (typically 9025.19) to avoid tariff classification errors.