Lenox Instrument Company

What Lenox Instrument Company does

Lenox Instrument Company is a privately held U.S. manufacturer of industrial remote visual inspection (RVI) instruments and high-temperature camera systems, founded in 1920 in Trevose, Pennsylvania, and currently operating with 11-50 employees. The company sells two primary product lines: Borescopes (videoscopes, flexible fiberscopes, rigid borescopes, micro borescopes, sectional extendable borescopes, and custom assemblies) used to inspect inaccessible internal areas in jet engines, turbines, vessels, and manufacturing assemblies; and FireSight high-temperature furnace and boiler camera systems (air-cooled, water-cooled, and portable diagnostic units, including the Lenox/Pultz line rated up to 4,250°F) deployed for combustion monitoring in power generation, steel, glass, cement, paper, waste-to-energy, and petrochemical facilities.

The business is anchored on proprietary optical technologies — Light Volume Control (a remotely motorized iris) and Quartz Optics — supported by one of the few in-house lens grinding and lens production facilities in the industry, enabling performance differentiation at extreme temperatures. Its underlying go-to-market is direct sales through a U.S. rep network plus factory-direct ordering via website, phone, and fax, with 24/7 service support. Revenue streams combine hardware sales (borescope units, FireSight systems, and OEM components supplied to boiler camera manufacturers since the 1950s) and professional services (installation supervision and field service), with quote-based pricing and a two-year product warranty. Customer concentration is distributed across marquee enterprises — including ArcelorMittal, U.S. Steel, Nucor, Corning, PPG, Pilkington/LOF, Saint-Gobain, Con Edison, PECO, NRG, Dow Chemical, BP, ConocoPhillips, Marathon Oil, Covanta, Wheelabrator, and the U.S. Department of Defense — with hundreds of installations across power, steel, glass, refining, paper, cement, and waste-to-energy verticals worldwide.

Name

Lenox Instrument Company

Legal name

Lenox Instrument Company, Inc.

Website

https://lenoxinst.com

Company type

Private

Founded year

1920

Operating status

Operating

Headcount range

11–50 employees

Short description

Lenox Instrument Company is a U.S. manufacturer, founded 1920, of industrial borescopes and FireSight high-temperature camera systems for combustion monitoring, serving power, steel, glass, cement, petrochemical, paper, and waste-to-energy enterprises.

Ownership category

akta.pro rank

Product category

Industrial Inspection Equipment

NAICS

Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables (334513), Navigational, Measuring, Electromedical, and Control Instruments Manufacturing (33451)

SIC

Industrial Instruments For Measurement, Display, And Control (3823), Optical Instruments & Lenses (3827)

akta.pro primary industry

Machine Vision & Inspection Lighting (Ring lights, bar lights, backlights, strobed illumination) (IMAGAIAG)

akta.pro secondary industry

Specialty & Task/Workstation Lighting (Inspection/task lights, cleanroom/food-grade, portable work lights) (IMAGAIAK)

Keywords

• Industrial borescopes
• Remote visual inspection
• High-temperature cameras
• Furnace monitoring systems
• Combustion monitoring equipment

Headquarters

HQ city

Feasterville Trevose

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Borescope and Visual Inspection Equipment Sales: Sale of industrial remote visual inspection instruments including rigid borescopes, flexible fiberscopes, videoscopes, micro borescopes, and custom assemblies. Products are sold with two-year warranties.
2. FireSight High-Temperature Camera Systems: Sale and service of high-temperature furnace and boiler camera systems for combustion monitoring in industrial applications. Includes air-cooled and water-cooled systems, portable diagnostic systems, and accessories.
3. Installation and Field Service: Professional services including installation supervision, field service, and technical support. Systems are supported 24/7.
4. OEM Components: Lenox serves as OEM supplier for boiler camera manufacturers and provides components to various industrial camera manufacturers, supplying furnace lenses and camera systems since the 1950s.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels6 records

Core offering

Lenox Instrument Company manufactures and sells industrial remote visual inspection (RVI) instruments — including rigid borescopes, flexible fiberscopes, videoscopes, micro borescopes, and custom borescope assemblies — alongside FireSight high-temperature furnace and boiler camera systems for combustion monitoring in hostile environments. The company has operated as a U.S. manufacturer with in-house lens grinding and production capabilities since 1920. Products are backed by a two-year warranty and 24/7 technical support, sold primarily to industrial enterprise customers across power generation, steel, glass, petrochemical, paper, cement, and waste-to-energy sectors.

Product overview

Lenox Instrument Company is a U.S. manufacturer of industrial optical inspection and high-temperature monitoring equipment since 1920. The company offers two primary product lines: Borescopes for internal visual inspection and FireSight high-temperature camera systems for combustion monitoring. The borescope portfolio includes Videoscopes, Flexible Fiberscopes, Rigid Borescopes, Micro Borescopes, Sectional Borescopes, and Custom Borescopes, all designed for remote visual inspection (RVI) of difficult-to-reach areas. The FireSight product line encompasses air-cooled and water-cooled high-temperature camera systems for viewing inside boilers, furnaces, kilns, incinerators, and other combustion chambers, with specialized solutions for steel mills, power generation, paper mills, glass manufacturing, cement kilns, and petrochemical refining. The company also provides portable diagnostic systems, monitoring stations, and various accessories. Lenox manufactures its own lenses in-house using lens grinding and production facilities.

Differentiator

Problem solved

Functional benefit

Products and services

• Videoscopes Flexible remote visual inspection tools with 4-way tip articulation, interchangeable heads, 6.4-inch LCD display, and digital image capture/transfer capability for industrial inspection of internal components.
• Flexible Fiberscopes Sealed, waterproof flexible borescopes with 2- or 4-way tip articulation delivering bright, clear viewing in inaccessible and inhospitable locations.
• Rigid Borescopes High-performance rigid borescopes of all-metal construction with computer-designed optics, stainless steel or aluminum housings, and highest-efficiency coatings for high-resolution inspection.
• Micro Borescopes Flexible and semi-rigid miniature borescopes with diameters as small as 0.5 mm for inspection of hypodermic needle tubing, turbine blade vent holes, and miniature electronic assemblies.
• Sectional Borescopes Modular extendable borescopes with interchangeable sections for inspection of tubing, drill pipe, vessels, chemical reactors, hydraulic cylinders, heat exchangers, aircraft landing gear, and similar long-reach applications.
• Custom Borescopes Custom-engineered borescope assemblies designed for extreme conditions including high temperatures, corrosive environments, explosive or flammable atmospheres, and radiation exposure.
• Borescope Accessories Accessories supporting borescope use, including high-intensity, portable, explosion-proof and UV light sources; light cables; still and video camera adapters; digital recording devices; protective shrouds; and radiation-hardened lenses.
• Air Cooled FireSight Systems High-temperature remote viewing systems for combustion monitoring up to 3000°F, featuring Light Volume Control, quartz optics, and compressed-air cooling with a small 2-3/8 inch boiler wall penetration.
• Water Cooled FireSight Systems High-temperature remote viewing systems using a water-jacketed furnace lens assembly for combustion monitoring up to 3800°F, installable through boiler wall penetrations as small as 2-1/8 inches.
• Lenox/Pultz High-Temperature Video Camera Systems High-temperature video cameras with pinhole lens technology mounted through furnace walls for steel mills, glass manufacturing, and rotary kilns. Stainless steel housing rated to 4250°F; aluminum housing for medium temperatures up to 1250°F.
• Furnace Camera HD High-temperature video camera system with stainless steel housing that mounts in a 3.5 inch opening and uses triple-wall laminar flow for water cooling, operating in hostile environments up to 4250°F.
• Hot Area Camera HD II Hot area camera for harsh industrial environments with stainless steel housing and water cooling; operates up to 500°F using mechanical pinhole viewing or up to 300°F using a front window.
• Portable FireSight Furnace Camera Diagnostic System Self-contained portable diagnostic system for color video monitoring of combustion and process control in boilers, furnaces, kilns, and incinerators. Includes wheeled case, air filtration, power system, and 8-inch LCD monitor.
• Hand-Held Diagnostic Camera System with Illumination Mobile inspection system with integrated illumination that enables high-resolution color video monitoring in low-light or dark industrial conditions. Features an air-cooled right-angle viewing lens with integrated 250W lamp in 36, 48, and 60 inch lengths.
• Tin Bath Periscope System Durable, rugged high-temperature remote viewing video camera system designed specifically for the float glass process. Right-angle viewing optical/video system extending into the tin bath with a 570-line B&W camera.
• Portable Furnace Camera Diagnostic System Portable diagnostic system for color video monitoring in high-temperature billet reheat furnaces. Self-contained with wheeled case, 8-inch LCD monitor, air filtration, and power system.

Quantifiable outcome

• Reduce fuel consumption by as much as 2%
• +3 more outcomes

Named customers27 records

Segments10 records

Ideal customer profiles9 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

One partnership is on record.

• PultzcoreStrategic or Co-development PartnerLenox and Pultz have a strategic partnership where Lenox sells and supports Pultz high-temperature video camera systems as part of the Lenox product portfolio. The Lenox/Pultz family of cameras are designed to be mounted through furnace walls and are widely used in steel mills, glass manufacturing, and rotary kilns for high-temperature process monitoring up to 4250°F. These systems employ pinhole lens technology and are offered alongside Lenox's own FireSight product line.

Scale indicators4 records

Recent moves6 records

Expansion highlights4 records

Direct peers

• Evident (formerly Olympus Industrial): Evident is the global market leader in industrial borescopes, videoscopes, and fiberscopes, serving the same aviation, power, and manufacturing inspection markets as Lenox with a much broader product range and international service network. Direct head-to-head competitor on RVI instruments.
• Waygate Technologies (Baker Hughes): Waygate Technologies (formerly GE Inspection Technologies / Everest VIT) is a leading global supplier of borescopes, remote visual inspection, and industrial CT systems. Competes directly with Lenox in aviation engine inspection, power generation, and oil & gas.
• IT Concepts (Gradient Lens Corporation): Gradient Lens Corporation's IT Concepts division manufactures rigid and flexible borescopes and HawkEye inspection cameras, overlapping directly with Lenox's industrial borescope and high-temperature camera offerings for the same industrial end markets.
• AMETEK Land: AMETEK Land is a leading manufacturer of non-contact temperature measurement and combustion monitoring instruments for power generation, steel, glass, and cement. Direct competitor to Lenox's FireSight high-temperature camera systems in industrial process monitoring.
• LumaSense Technologies (Advanced Energy): LumaSense (now part of Advanced Energy) supplies infrared thermometers, pyrometers, and combustion/flame monitoring cameras for power, steel, and petrochemical applications. Directly comparable to Lenox FireSight in combustion monitoring, flame imaging, and high-temperature process instrumentation.

Emerging players

• ViewTec (View Plus Techno GmbH): ViewTec is a niche manufacturer of industrial borescopes and video endoscopes, primarily serving European industrial inspection customers. Comparable to Lenox in product scope but smaller in scale and more regionally focused.
• Teledyne FLIR: Teledyne FLIR manufactures thermal imaging cameras and condition monitoring systems used in industrial inspection, predictive maintenance, and process monitoring. Partially overlaps with Lenox's FireSight process monitoring line in heavy industrial environments.

Broad incumbents

• Mitutoyo: Mitutoyo is a global leader in precision optical measurement and inspection instruments for industrial quality control. While not a borescope specialist, it serves overlapping customers (manufacturing QC, power, automotive) with inspection/measurement technology and represents a broader incumbent in the industrial optical inspection space.
• Keyence: Keyence is a global manufacturer of machine vision systems, sensors, and measurement instruments serving industrial automation and quality control. Although focused on inline machine vision rather than handheld borescopes, Keyence competes for the same industrial inspection budget at OEM and plant maintenance customers.
• Cognex: Cognex is a leading supplier of machine vision and industrial barcode reading systems used in factory automation and quality control. Adjacent competitor to Lenox in industrial visual inspection, particularly in automotive and general manufacturing QC applications.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/LenoxInstrument

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Lenox Instrument Company