KWJ Engineering
KWJ Engineering is a privately held Fremont, California–based gas detection specialist (founded 1993) that designs electrochemical sensors, screen-printed gas sensor modules, and wearable, medical, industrial, and smart city air-quality products, with wholly-owned subsidiary SPEC Sensors commercializing low-power OEM electrochemical sensors.
- Company typePrivate
- Founded1993
- HeadquartersNewark, United States
- Headcount11–50
- GTM typeB2B
- OfferingHardware or Manufacturing
What KWJ Engineering does
KWJ Engineering, Inc. is a privately held California corporation founded in 1993 and based in Fremont, California, specializing in gas detection and environmental monitoring technology for safety, medical, industrial, smart city, wearable, and IoT applications. The company builds hardware and platforms around electrochemical sensors, screen-printed gas sensor fabrication, MEMS fabrication methods, zero-power wireless sensor architectures, and patented diffuse plasma ionization source (DPIS) technology. Its commercial product portfolio spans the Pocket CO wearable carbon monoxide detector, the SPARROW smartphone-integrated CO and air quality monitor, the A316/A310 inline CO monitor for compressed-air sampling, the A333 low-pressure alarm for medical gas cylinders in hospitals and extended-care facilities, and multi-gas sensor modules (up to seven gases) for smart city infrastructure. The company also operates the SPEC Sensors, LLC subsidiary (founded 2012, wholly owned), which commercializes low-cost, low-power electrochemical gas sensors as standard OEM components.
KWJ runs three revenue streams: (1) hardware product sales of gas detection instruments and modules via direct website storefront and SPEC Sensors distribution, with all products available for custom branding under inquiry-based pricing; (2) custom engineering services covering full product development from concept through mass manufacture, leveraging in-house capabilities across chemical, mechanical, electrochemistry, sensor design, nanotechnology, electrical engineering, and programming; and (3) R&D funding via SBIR/STTR grants from NIH, NSF, EPA, USDA, DOD, and NASA, totaling over $5 million cumulatively and supporting development programs in transdermal alcohol monitoring, fugitive methane detection, lead-in-water testing, wildland-fire air quality, firefighter safety, ozone-based sterilization, and an autonomous environmental monitoring platform for the International Space Station. Customers span hospitals and extended-care facilities, industrial operators, smart city programs (including the Array of Things deployment), research institutions, government agencies, and consumers through wearables, with go-to-market executed via direct sales, technical content marketing, and channel partners (Eco Sensors for ozone instrumentation, SPEC Sensors for OEM sensors).
The company is led by founder and CTO Dr. Joseph R. Stetter (nearly 40 years of chemical sensor expertise), with Dr. Michael Carter as Director of Research since 2010, Mel Findlay as Senior Principal Engineer leading R&D and product development, and Dr. David Peaslee in electrochemical modeling R&D. Additional governance context indicates a founder Kenneth Johnson as founder and chairman. The headcount range of 11-50 employees, combined with a heavily grant-funded R&D operation and contact-based custom pricing, indicates a tightly scoped specialist rather than a venture-scaled platform, with non-dilutive government funding substituting for equity capital to finance ongoing technical expansion.
KWJ Engineering firmographics
Firmographics- Name
- KWJ Engineering
- Legal name
- KWJ Engineering, Inc.
- Website
- https://kwjengineering.com
- Company type
- Private
- Founded year
- 1993
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- KWJ Engineering is a privately held Fremont, California–based gas detection specialist (founded 1993) that designs electrochemical sensors, screen-printed gas sensor modules, and wearable, medical, industrial, and smart city air-quality products, with wholly-owned subsidiary SPEC Sensors commercializing low-power OEM electrochemical sensors.
- Ownership category
- akta.pro rank
KWJ Engineering industry classification
Industry- Product category
- Gas Detection Instrumentation
- NAICS
- Other Measuring and Controlling Device Manufacturing (334519), Analytical Laboratory Instrument Manufacturing (334516)
- SIC
- Industrial Instruments For Measurement, Display, And Control (3823), Laboratory Analytical Instruments (3826)
- akta.pro primary industry
- Environmental & Safety Monitoring Instruments (Air quality, emissions, radiation, noise, gas detection) (IMAGAFAJ)
- akta.pro secondary industries
- Process Analytical Instrumentation (Gas analyzers, spectroscopy, pH/ORP, conductivity) (IMAGAFAE), Fugitive Emissions & Leak Detection (LDAR, OGI, Methane) (EUAHADAB), Environmental Sensors (Temperature/Humidity/Gas/Air Quality) (HDAHALAD)
Keywords
Where KWJ Engineering is headquartered
LocationHeadquarters
- HQ city
- Newark
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
KWJ Engineering business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Personnel, Technology or R&D, Operations, Supply Chain, Marketing or Sales, Infrastructure
Revenue model
- Gas Detection Hardware Products: Sale of gas detection instruments and modules including carbon monoxide monitors, ozone detectors, inline monitors, and air quality sensors for various applications
- Custom Engineering Services: Full product development services from concept to mass manufacture, providing engineering solutions for air quality, gas safety, and industrial applications
- R&D Grant Funding: Research grants from government agencies including NIH, EPA, USDA, NSF, DOD, and NASA supporting development of new sensor technologies and products
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Custom branding products - pricing by inquiry |
Go-to-market motion2 records
Distribution channels3 records
Marketing channels3 records
KWJ Engineering product offering
Product offeringCore offering
KWJ Engineering designs, develops, and manufactures gas detection and environmental monitoring hardware (carbon monoxide monitors, ozone detectors, inline compressed-air monitors, low-pressure alarms, and smart-city sensor modules) and provides full custom engineering services from concept to mass manufacture for unique gas-sensing applications in industrial, medical, government, and consumer-safety markets.
Product overview
KWJ Engineering offers a portfolio of gas detection and environmental monitoring products ranging from personal wearable devices to industrial inline monitors and smart city infrastructure solutions. The product line includes: Pocket CO (personal carbon monoxide detector), SPARROW (smartphone-integrated air quality monitor), A316/A310 Inline Monitor (industrial CO monitor), A333 Low Pressure Alarm (medical gas cylinder alarm), and Sensor Integration modules for smart city deployments. The company also partners with SPEC Sensors for electrochemical gas sensors and Eco Sensors for ozone detection products, providing a comprehensive ecosystem for gas sensing applications across health/safety, smart city, medical/industrial, and environmental monitoring segments.
Differentiator
Problem solved
Functional benefit
Brands
- Pocket CO: World's smallest Carbon Monoxide detector - wearable carbon monoxide alarm for personal protection with advanced technology and data collection capabilities.
- SPARROW
- A316/A310 Inline Monitor
- A333 Low Pressure Alarm
- Eco Sensors
Products and services
- Pocket CO The world's smallest wearable carbon monoxide detector for personal protection. Pocket CO enables monitoring of low and high CO levels with dosimetry information including maximum and average readings for individual safety-conscious users.
- SPARROW Carbon Monoxide and Air Quality Monitor with smartphone integration that measures and alarms to high and low levels of CO along with temperature and pressure, featuring data logging, customizable alerts, and location mapping of air quality events for personal safety-conscious users.
- A316/A310 Inline Monitor 115 VAC dust-resistant carbon monoxide (CO) monitor and alarm that continuously monitors compressed air samples and triggers alarms when CO exceeds preset levels, with digital display, 4-20mA signal output, and internal alarm relay for industrial operators and biomedical/plant engineering teams.
- A333 Low Pressure Alarm A unique life safety device that notifies users when bottled Oxygen, Nitrogen, Halocarbon, or air cylinders need replenishment, intended primarily for hospitals, clinics, nursing homes, and extended care facilities.
- Sensor Integration for Smart City Infrastructure Air quality sensor modules supporting up to 7 sensors that integrate KWJ sensor technology into smart city projects, incorporating SPEC Sensors for NO2, CO, SO2, H2S, temperature, pressure, and humidity monitoring across distributed urban deployments.
- KWJ Custom Engineering Services End-to-end custom product development and engineering services spanning concept, design, prototyping, and mass manufacture for unique gas-sensing and environmental-monitoring needs in traditional and emerging applications, delivered to enterprise, medical, government, and research clients.
Quantifiable outcome
- Screen-printed gas sensor demonstrated performance matching or exceeding commercial sensors 10-100 times larger and 10-100 times more expensive
- +1 more outcomes
Companies that use KWJ Engineering
Customer profileNamed customers5 records
Segments6 records
Ideal customer profiles5 records
KWJ Engineering technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature8 records
KWJ Engineering partnerships and signals
Strategic signalPartnerships
Six partnerships are on record, tiered supporting and core.
- University of Missouri - St. LouissupportingUniversity partner developing machine learning algorithms for autonomous environmental monitoring platform for the International Space Station. Algorithms will process temporal, spatial, and physical environmental data from mobile sensor arrays.
- Magnitude.iosupportingPartner for delivery integration with ISS National Lab for autonomous environmental monitoring experiments. Responsible for safe delivery of sensor systems to the International Space Station.
- SPEC Sensors, LLCcoreSPEC Sensors was founded in 2012 and built from the R&D of KWJ Engineering. SPEC Sensors provides low-cost, low-power electrochemical sensors for CO, O3, NO2, SO2, H2S, and Ethanol. KWJ Engineering provides development services and custom product solutions while SPEC focuses on standard sensor products.
- Eco SensorscoreEco Sensors is an international designer, manufacturer, and supplier for ozone monitoring devices and gas detection. Eco Sensors brand products include handheld instruments, monitors and controllers, dissolved ozone sensors, electrochemical sensors, and OEM boards for ozone sensor integration.
- OtterboxsupportingSPARROW carbon monoxide and air quality monitor is designed to fit with the Otterbox uniVERSE case system for smartphone integration.
- Array of ThingssupportingUrban sensor development project showcasing potential for smart city applications using KWJ sensor technology for city infrastructure air quality monitoring.
Scale indicators4 records
Recent moves6 records
Expansion highlights6 records
KWJ Engineering competitors and assessment
Company assessmentDirect peers
- Aeroqual: Developer of air quality and gas monitoring sensors and instruments for environmental, smart city, and occupational health; comparable as a focused air-quality monitoring peer with overlapping smart-city and environmental use cases.
- Industrial Scientific: Specialist in portable and fixed gas detectors for confined-space and industrial safety; directly comparable as a focused gas-detection peer competing for similar industrial and safety end users.
- RKI Instruments: Manufacturer of gas detection equipment and electrochemical sensors for industrial, confined space, and environmental applications; comparable as a mid-sized specialty gas-detection peer with overlapping product categories.
- Eco Sensors: International designer/manufacturer of ozone monitors, controllers, and OEM ozone sensor modules; directly comparable as a niche gas-detection peer and existing KWJ channel partner serving overlapping ozone and air-quality customers.
- Alphasense: UK-based manufacturer of electrochemical and NDIR gas sensors for air quality, safety, and industrial monitoring; directly comparable as a specialist gas-sensor supplier serving similar OEM and integrator customers.
Emerging players
- SPEC Sensors: Wholly-owned subsidiary of KWJ that commercializes low-cost, low-power electrochemical sensors for CO, O3, NO2, SO2, H2S, and ethanol; directly comparable as a productized spin-out of KWJ's R&D platform targeting OEM sensor integration.
Broad incumbents
- Sensirion: Swiss manufacturer of environmental sensors (gas, humidity, temperature, flow) for HVAC, automotive, and consumer applications; comparable as an established environmental sensor supplier competing for IoT and smart-home OEM sockets.
- Dräger: Global manufacturer of gas detection instruments and safety solutions for industrial, mining, and medical gas monitoring; comparable as a broad incumbent in fixed and portable gas detection where KWJ competes with industrial inline monitors and alarms.
- MSA Safety: Major global supplier of fixed gas detection, portable gas monitors, and personal protective equipment; comparable as a broad incumbent serving overlapping industrial safety, smart-city, and first-responder segments.
- City Technology (Honeywell): Honeywell-owned manufacturer of electrochemical gas sensors used in safety, medical, and industrial detectors; comparable as an established gas-sensor incumbent that KWJ's screen-printed technology aims to disrupt on cost.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights6 records
Customer concentration
KWJ Engineering social profiles
Digital presenceKWJ Engineering financial estimates
Financial estimateRevenue estimate
Valuation estimate
KWJ Engineering leadership team
Management profileNumber of profiles
Profiles5 records
KWJ Engineering subsidiaries and ownership
Company hierarchySubsidiaries1 record
KWJ Engineering funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
KWJ Engineering M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about KWJ Engineering
What does KWJ Engineering do?
KWJ Engineering designs, develops, and manufactures gas detection and environmental monitoring hardware (carbon monoxide monitors, ozone detectors, inline compressed-air monitors, low-pressure alarms, and smart-city sensor modules) and provides full custom engineering services from concept to mass manufacture for unique gas-sensing applications in industrial, medical, government, and consumer-safety markets.
Is KWJ Engineering a public or private company?
KWJ Engineering is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was KWJ Engineering founded?
KWJ Engineering was founded in 1993. It employs 11 to 50 people.
Where is KWJ Engineering based?
KWJ Engineering is headquartered in Newark, United States, in the North America region.
How does KWJ Engineering make money?
Three revenue lines are on record. Gas Detection Hardware Products are the primary driver. The others are custom Engineering Services and R&D Grant Funding.
Who are KWJ Engineering's main competitors?
Direct peers on record are Aeroqual, Industrial Scientific, RKI Instruments, Eco Sensors and Alphasense. SPEC Sensors is listed as an emerging player. Broad incumbents are Sensirion, Dräger, MSA Safety and City Technology (Honeywell).
Does KWJ Engineering have an API?
No public API is recorded for KWJ Engineering.
What industry is KWJ Engineering in?
KWJ Engineering's product category is Gas Detection Instrumentation. Its primary akta.pro industry code is IMAGAFAJ, Environmental & Safety Monitoring Instruments (Air quality, emissions, radiation, noise, gas detection), with a secondary code of IMAGAFAE, Process Analytical Instrumentation (Gas analyzers, spectroscopy, pH/ORP, conductivity). Its NAICS code is 334519 and its SIC code is 3823.