Testo 6681 Humidity Process Controller from China
Testo 6681 industrial humidity controller features Modbus connectivity and relay outputs for precise RH control in production environments. Automatically maintains humidity setpoints through proportional control of humidification systems. Classified HTS 9032.89.60.70 process control humidity instruments.
Duty Rate — China → United States
39.2%
Rate breakdown
9903.88.0125%Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Provide protocol specifications (Modbus, Profibus) confirming industrial process control
• Include humidity sensor accuracy certificates (±1.0% RH typical)