Thermographs, barographs, hygrographs and other recording instruments
Hydrometers and similar floating instruments, thermometers, pyrometers, barometers, hygrometers and psychrometers, recording or not, and any combination of these instruments; parts and accessories thereof: > Other instruments: > Other: > Thermographs, barographs, hygrographs and other recording instruments
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.39, 9903.88.42, 9903.88.44, 9903.88.47, 9903.88.49, 9903.88.51, 9903.88.53, 9903.88.55, 9903.88.57, 9903.88.65, 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(r) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(s)
Products classified under HTS 9025.80.40.00
Digital Thermograph Data Logger
A portable digital device that continuously records temperature variations over time using built-in sensors and stores data for later analysis. It falls under HTS 9025.80.40.00 as a thermograph, which is specifically listed as a recording instrument for temperature monitoring in environmental and industrial applications.
Mechanical Barograph Drum Recorder
A traditional analog instrument using a rotating drum and ink pen to graphically record atmospheric pressure changes over time. Classified under HTS 9025.80.40.00 as a barograph, one of the explicitly named recording instruments in this subheading for meteorological use.
Wireless Hygrograph Chart Recorder
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.
Multi-Parameter Weather Recording Station
Integrated recording instrument combining thermograph, hygrograph, and barograph functions to log temperature, humidity, and pressure on a single chart or digital display. Falls under HTS 9025.80.40.00 as 'other recording instruments' combining listed types for comprehensive meteorological data collection.
Temperature Humidity Data Logger THD-200
Compact USB data logger model THD-200 that records temperature and humidity simultaneously with programmable intervals and LCD display. Classified in HTS 9025.80.40.00 as a combination recording instrument (thermograph/hygrograph) for laboratory and storage monitoring.
Chart-Type Barograph Weather Station
Desktop barograph featuring a seven-day chart drum that records atmospheric pressure with precision bourdon tube movement. It is a classic thermograph/barograph under HTS 9025.80.40.00 designed for home or professional weather observation.
Industrial Hygrothermograph Recorder
Wall-mountable industrial recorder that produces strip-chart records of temperature and humidity for manufacturing environments. Qualifies under HTS 9025.80.40.00 as a combined thermograph and hygrograph recording instrument for process monitoring.
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'.
Seven-Day Mechanical Thermograph
Clockwork-driven thermograph with weekly chart rotation for continuous temperature recording in refrigeration units. Traditional mechanical design places it squarely in HTS 9025.80.40.00 as a named thermograph recording instrument.
USB Barograph Pressure Logger
Digital pressure logger with USB interface that records barometric data at user-set intervals for aviation and research. HTS 9025.80.40.00 covers this as a modern barograph recording instrument.
Greenhouse Hygrograph Recorder
Rugged hygrograph designed for greenhouse environments, recording humidity on weatherproof charts. Specifically a hygrograph under HTS 9025.80.40.00 for agricultural monitoring.
Lab-Grade Multi-Recording Hygrothermograph
Precision laboratory instrument recording temperature, humidity, and barometric pressure on synchronized charts. 'Other recording instruments' under HTS 9025.80.40.00 combining multiple functions.
Digital Chartless Recording Thermograph
Paperless thermograph storing temperature history digitally with touchscreen review. Still a recording thermograph under HTS 9025.80.40.00 despite lacking charts.
Meteorological Barograph Drum Unit
Professional-grade barograph for weather service stations with precision pressure recording drums. Explicit barograph classification HTS 9025.80.40.00.
Battery-Powered Field Hygrograph
Portable battery-operated hygrograph for field research, recording humidity data internally. HTS 9025.80.40.00 as portable recording hygrograph.