Testo 6681 Humidity Process Controller from Canada
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 — Canada → United States
11.7%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide protocol specifications (Modbus, Profibus) confirming industrial process control
• Include humidity sensor accuracy certificates (±1.0% RH typical)