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U.S. Notes (con.) (189) Electric fireplace inserts and free-standing electric fireplace heaters, rated at 5,000 British thermal units (BTUs) (described in statistical reporting number 8516.29.0090) (190) Electric fireplaces, weighing not more than 55 kg (described in statistical reporting number 8516.29.0090) (191) Portable countertop air fryers of a kind used for domestic purposes (described in statistical reporting number 8516.60.4070) (192) Tubular electric heating resistors (described in statistical reporting number 8516.80.8000) (193) Closed-loop, digital, video security systems, each consisting of one 4-, 8- or 16-channel digital video recorder (DVR) that connects via cables to at least 2 but no more than 16 color television cameras in housings of plastics, cables and power adapters, put up for retail sale (described in statistical reporting number 8525.80.3010) (194) Color video cameras for use with microscopes, each camera with C-mount lens mount, weighing not more than 87 g, measuring not more than 109 mm in length and 31 mm in diameter, presented with a cable measuring not more than 1.5 m in length (described in statistical reporting number 8525.80.3010) (195) Digital color video cameras for use with microscopes, each camera with 10 megapixel resolution, weighing not more than 175 g, measuring 63 mm by 37 mm in length, presented with USB cable, reduction lens, eyepiece adapters, software CD and calibration slide (described in statistical reporting number 8525.80.3010) (196) Digital color video cameras for use with microscopes, each camera with autofocus, C-mount lens mount, 1080p resolution, weighing not more than 450 g, measuring not more than 67 mm by 67 mm by 81 mm, presented with AC power adapter and power cable (described in statistical reporting number 8525.80.3010) (197) Indicator panels incorporating LEDs, designed for use in medical infusion equipment (described in statistical reporting number 8531.20.0040) (198) Printed circuit boards, each with a base wholly of plastics impregnated glass, not flexible, with 4 layers of copper (described in statistical reporting number 8534.00.0020) (199) Printed circuit boards, with a base of glass reinforced epoxy laminate material that is compliant with NEMA grade FR-4 fire resistance, not flexible, with 10 layers, designed for use in a flow meter, and measuring not more than 6.35 cm by 6.35 cm by 0.1575 cm (described in statistical reporting number 8534.00.0020) (200) Printed circuit boards, each with a base wholly of plastics impregnated glass, not flexible, with 2 layers of copper (described in statistical reporting number 8534.00.0040) (201) Floor-mounted receptacles conforming to types 1-15R, 5-15R or 5-20R of the National Electrical Manufacturers Association (NEMA) (described in statistical reporting number 8536.69.8000) (202) Gas ignition safety controls, measuring 3.8 to 5.3 cm in height, 6.4 to 10.1 cm in width and 13.2 to 13.9 cm in depth; weighing 160 g to 380 g each; and valued not over $26 each; of a kind used in patio heaters, agricultural heaters or clothes dryers (described in statistical reporting number 8537.10.9170) (203) Printed circuit board assemblies specially designed to control medical infusion pumps (described in statistical reporting number 8537.10.9170) (204) Digital sound processing apparatus capable of connecting to a wired or wireless network for the mixing of sound, each capable of mixing 16, 24, 32 or 64 channel, each measuring not more than 17 cm in height, not more than 60 cm in depth, and not more than 83 cm in width (described in statistical reporting number 8543.70.9100) (205) Insulated electric conductors for a voltage not exceeding 1,000 V, fitted with connectors of a kind used for telecommunications, each valued over $0.35 but not over $2 (described in statistical reporting number 8544.42.2000) (206) Extension cords of copper wire with polyvinyl chloride (PVC) sheaths, for a voltage not exceeding 1,000 V, each measuring at least 9 m but not longer than 16 m in length, with National Electrical Manufacturers Association (NEMA) type 5-15P plug on one end and NEMA type 5-15R receptacle on the other (described in statistical reporting number 8544.42.9010) Harmonized Tariff Schedule of the United States Revision 15 (2026) Annotated for Statistical Reporting Purposes XXII 99 - III - 270