Founded in 2012 and acquired by Interlink Electronics in December 2022, SPEC Sensors brings a multi-decade portfolio of electrochemical gas sensing IP and Silicon Valley engineering depth to the Interlink group.
Interlink Subsidiary
SPEC Sensors
High-performance, ultra-low-power electrochemical gas sensors for wearables, health and wellness, smart homes, and IoT — designed and manufactured in Silicon Valley as a division of Interlink Electronics.
Sensor Size
20 × 20 × 3 mm
Ultra-low-power <50 µW
Gas Types
CO, O₃, NO₂, H₂S, SO₂, EtOH + more
A Division of Interlink Electronics
Gas sensors small enough to go anywhere, powerful enough to matter
SPEC Sensors designs and manufactures printed, plastic-laminated electrochemical gas sensors that miniaturise high-performance gas detection to a 20×20×3 mm footprint with power consumption under 50 µW. That combination — accurate, linear, factory-tested, and battery-friendly — makes SPEC the go-to sensor element for IoT wearables, smart home devices, and distributed air quality networks.
Founded in 2012 near Silicon Valley by Dr. Joseph Stetter and Ed Stetter, the company brings decades of electrochemical sensing research into reliable, low-cost product platforms for consumer and industrial markets.
Core Facts
- 20 × 20 × 3 mm sensor element size
- Ultra-low power: <50 µW max consumption
- 10+ year rated operational life
- 100% factory-tested before shipment
- Accurate, linear, and fast response
- Compatible with digital and analog interfaces
Product Catalog
Browse All ProductsThree product tiers — sensor elements, signal-conditioned modules, and complete instruments — let engineers choose the right level of integration for their application.
Gas Sensor Elements
17 productsPrinted and plastic-laminated electrochemical sensor elements in a 20×20×3 mm package. Starting from $20. Factory-tested for CO, O3, NO2, H2S, SO2, EtOH, and more.
View categoryGas Sensor Modules
2 productsDGS2 digital (UART, $65–$102), AGS analog, and ULPSM ultra-low-power modules with signal processing and temperature compensation. Include sensor element, conditioning circuit, and standard interface electronics.
View categoryGas Sensor Instruments
0 productsComplete sensor systems, analyzer instruments, and development kits. Starting from $59. Integration and calibration performed at the factory. Contact for custom design support.
View categoryGases Detected
SPEC sensor elements and modules are available for a wide range of target gases, with both standard and high-sensitivity variants for select analytes. Contact the team for gases not listed.
CO
Carbon Monoxide
O₃
Ozone
NO₂
Nitrogen Dioxide
H₂S
Hydrogen Sulfide
SO₂
Sulfur Dioxide
EtOH
Ethanol / Alcohol
H₂
Hydrogen
HCHO
Formaldehyde
C₂H₄
Ethylene
NO
Nitric Oxide
Cl₂
Chlorine
IAQ
Indoor Air Quality Index
Applications
SPEC sensor platforms are designed to enable gas sensing across the consumer, commercial, and industrial markets being shaped by the Internet of Things.
Wearables & Personal Monitoring
The 20×20×3 mm footprint and <50 µW power consumption make SPEC elements and modules ideal for integration into wrist-worn, clip-on, and body-near monitoring devices.
Health & Wellness
Breath analysis, respiratory monitoring, and indoor air quality measurement for consumer and clinical health applications.
Smart Home & Building
Embedded air quality sensing for smart home hubs, HVAC systems, connected appliances, and building management platforms.
Industrial Safety
Worker protection and facility monitoring for carbon monoxide, hydrogen sulfide, and other regulated gas hazards in manufacturing and process environments.
Environmental & Citizen Science
Distributed outdoor air quality monitoring networks where affordability and deployment density are prioritised alongside measurement performance.
IoT & Connected Devices
Integration into wireless sensor nodes, smart city infrastructure, and IoT gateways requiring low power, small size, and reliable long-life gas detection.
Technology
Electrochemical sensing for everyday life
Electrochemical gas detection is the preferred sensing modality for IoT and wearable applications because it delivers accurate, selective, gas-specific measurements at power levels that batteries can sustain for months or years.
SPEC combines novel printed-electronics manufacturing with time-tested electrochemical cell design to produce sensors that are thin enough to fit inside a smartwatch and reliable enough for ten-year field deployment.
- Printed and plastic-laminated sensor architecture
- Digital (UART) and analog output module options
- Temperature-compensated, calibrated from factory
- Field-validated against reference-grade monitors
- Arduino-compatible libraries available on GitHub
About SPEC Sensors
Part of the Interlink Electronics group
SPEC Sensors was founded in 2012 near Silicon Valley by Dr. Joseph Stetter and Ed Stetter, applying decades of electrochemical sensing research to the challenge of making gas detection affordable and practical for consumer devices and IoT networks.
Interlink Electronics acquired SPEC Sensors and KWJ Engineering in December 2022. The acquisition added Silicon Valley engineering talent, a multi-decade gas sensing IP portfolio, and approximately $4 million in trailing revenue to the Interlink group.
Interlink Gas Sensing Ecosystem
Complete gas sensing solutions across the Interlink group
SPEC Sensors is part of Interlink's connected gas sensing ecosystem alongside KWJ Engineering, Ecosensors, and Sparrow Sensors. Together these divisions cover the full stack — from raw electrochemical sensor elements and signal-conditioned modules through complete instruments, ozone monitoring platforms, and consumer-grade connected wearables.