SIC 3812 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical Systems and Instruments - Description, Market Prospects, Industry History

This category includes establishments primarily engaged in manufacturing search, detection, navigation, guidance, aeronautical, and nautical systems and instruments. Important products of this industry are radar systems and equipment; sonar systems and equipment; navigation systems and equipment; countermeasures equipment; aircraft and missile control systems and equipment; flight and navigation sensors, transmitters, and displays; gyroscopes; airframe equipment instruments; and speed, pitch, and roll navigational instruments and systems.

SIC 3821 Laboratory Apparatus and Furniture - Description, Market Prospects, Industry History

Establishments in this industry are primarily engaged in manufacturing laboratory apparatus and furniture. The main products of this industry include baths and melting point apparatus, laboratory furniture such as furnaces and ovens, component parts and accessories for instruments, and centrifuges.

SIC 3822 Automatic Controls for Regulating Residential and Commercial Environments and Appliances - Description, Market Prospects, Industry History

Establishments in this industry are primarily engaged in manufacturing temperature and related controls for heating and air-conditioning installations and refrigeration applications, which are electrically, electronically, or pneumatically actuated, and which measure and control variables such as temperature and humidity; also included are automatic regulators used as components of household appliances. Automatic controls for regulating residential and commercial environments include heating, ventilating, air-conditioning (HVAC) unit controls and building monitoring controls for temperature and humidity modulation.

SIC 3823 Industrial Instruments for Measurement, Display, and Control of Process Variables, and Related Products - Description, Market Prospects, Industry History

This category includes establishments primarily engaged in manufacturing industrial instruments and related products for measuring, displaying (indicating and/or recording), transmitting, and controlling process variables in manufacturing, energy conversion, and public service utilities. These instruments operate mechanically, pneumatically, electronically, or electrically to measure process variables such as temperature, humidity, pressure, vacuum, combustion, flow, level, viscosity, density, acidity, alkalinity, specific gravity, gas and liquid concentration, sequence, time interval, mechanical motion, and rotation.

SIC 3824 Totalizing Fluid Meters and Counting Devices - Description, Market Prospects, Industry History

This category includes establishments primarily engaged in manufacturing meters for registering or tallying quantities of fluids, motor vehicle measuring instruments, and instruments for counting the frequency of items or events. This category includes establishments that manufacture domestic, commercial, and industrial gas and water meters; meters for measuring speed, distance traveled, and other variables for the motor vehicle industry; and counters and timers for quantifying production rates in industrial processes.

SIC 3825 Instruments for Measuring and Testing of Electricity and Electrical Signals - Description, Market Prospects, Industry History

This industry is made up of companies that manufacture a multitude of analytical devices. Examples of industry output include voltmeters, ammeters, wattmeters, watt-hour meters, semiconductor test equipment, and circuit testers.

SIC 3826 Laboratory Analytical Instruments - Description, Market Prospects, Industry History

This group covers establishments primarily engaged in manufacturing laboratory instruments and instrumentation systems for chemical or physical analysis of the composition or concentration of samples of solid, fluid, gaseous, or composite material. Establishments primarily engaged in manufacturing instruments for monitoring and analyzing continuous samples from medical patients are classified in SIC 3845: Electromedical and Electro-therapeutic Apparatus; and from industrial process streams are classified in SIC 3823: Industrial Instruments for Measurement, Display, and Control of Process Variables; and Related Products.

SIC 3827 Optical Instruments and Lenses - Description, Market Prospects, Industry History

This category covers establishments primarily engaged in manufacturing instruments and apparatus that measure an optical property and optically project, measure, or magnify an image, such as binoculars, microscopes, prisms, and lenses. Included are establishments primarily engaged in manufacturing optical sighting and fire control equipment.

SIC 3829 Measuring and Controlling Devices, Not Elsewhere Classified - Description, Market Prospects, Industry History

This industry is comprised of companies primarily engaged in manufacturing a multitude of miscellaneous monitoring instruments. Major industry product segments include aircraft engine instruments; nuclear radiation detection and monitoring instruments; commercial, geophysical, meteorological, and general-purpose instruments and equipment; and physical properties testing and inspection equipment.

SIC 3841 Surgical and Medical Instruments and Apparatus - Description, Market Prospects, Industry History

This category covers establishments primarily engaged in manufacturing medical, surgical, ophthalmic, and veterinary instruments and apparatus. Establishments primarily engaged in manufacturing surgical and orthopedic appliances are classified in SIC 3842: Orthopedic, Prosthetic, and Surgical Appliances and Supplies; those manufacturing electrotherapeutic and electromedical apparatus are classified in SIC 3845: Electromedical and Electrotherapeutic Apparatus; and those manufacturing X-ray apparatus are classified in SIC 3844: X-ray Apparatus and Tubes and Related Irradiation Apparatus.

SIC 3842 Orthopedic, Prosthetic, and Surgical Appliances and Supplies - Description, Market Prospects, Industry History

This classification covers establishments primarily engaged in manufacturing orthopedic, prosthetic, and surgical appliances and supplies; arch supports and other foot appliances; fracture appliances, elastic hosiery, abdominal supporters, braces, and trusses; bandages; surgical gauze and dressings; sutures; adhesive tapes and medicated plasters; and personal safety appliances and equipment. Establishments primarily engaged in manufacturing surgical and medical instruments are classified in SIC 3841: Surgical and Medical Instruments and Apparatus.

SIC 3843 Dental Equipment and Supplies - Description, Market Prospects, Industry History

This classification comprises establishments primarily engaged in manufacturing artificial teeth, dental metals, alloys, and amalgams, as well as a wide variety of equipment, instruments, and supplies used by dentists, dental laboratories, and dental colleges. Excluded from this classification are dental laboratories that construct artificial dentures, bridges, inlays, and other dental restorations on specifications from dentists; these are classified in SIC 8072: Dental Laboratories.

SIC 3844 X-Ray Apparatus and X-Ray Tubes - Description, Market Prospects, Industry History

Firms in this industry engage primarily in manufacturing irradiation apparatus and tubes for applications such as medical diagnostic, medical therapeutic, industrial, research, and scientific evaluation.

SIC 3845 Electromedical and Electrotherapeutic Apparatus - Description, Market Prospects, Industry History

This classification comprises establishments primarily engaged in manufacturing electromedical and electro-therapeutic apparatus, such as magnetic resonance imaging equipment, medical ultrasound equipment, pacemakers, hearing aids, electrocardiographs and electromedical endoscopic equipment. Establishments primarily engaged in manufacturing electrotherapeutic lamp units for ultraviolet and infrared radiation are classified in SIC 3641: Electric Lamp Bulbs and Tubes.

SIC 3851 Ophthalmic Goods - Description, Market Prospects, Industry History

This classification includes establishments primarily engaged in manufacturing ophthalmic frames, lenses, contact lenses, and sunglass lenses. Establishments involved in manufacturing molded glass blanks are included in SIC 3229: Pressed and Blown Glass and Glassware, Not Elsewhere Classified; and businesses engaged in grinding lenses and fitting glasses to prescriptions are classified in SIC 5995: Optical Goods Stores.

SIC 3861 Photographic Equipment and Supplies - Description, Market Prospects, Industry History

This classification includes establishments primarily engaged in manufacturing photographic apparatus, equipment, parts, attachments, and accessories utilized in both still and motion photography. Also covered in this classification are establishments primarily involved in manufacturing photocopy and microfilm equipment, blueprinting and diazotype (white printing) apparatus and equipment, sensitized film, paper, cloth, and plates, and prepared photographic chemicals.

SIC 3873 Watches, Clocks, Clockwork Operated Devices, and Parts - Description, Market Prospects, Industry History

This segment covers establishments primarily engaged in manufacturing clocks, watches, watchcases, mechanisms for clockwork operated devices, and clock and watch parts. This industry includes establishments primarily engaged in assembling clocks and watches from purchased movements and cases.