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Interlink Technology Platform

Printed Electrochemical Gas Sensors

Printed electrochemical gas sensing built for wearables, health and wellness devices, smart homes, and distributed IoT systems.

SPEC Sensors logo

Pioneer of printed, plastic-laminated electrochemical gas sensors. Acquired by Interlink Electronics in 2022.

Sensor Size

20 × 20 × 3 mm

Ultra-low-power <50 µW

Gas Types

CO, O₃, NO₂, H₂S, SO₂, EtOH + more

Pioneering Technology

Gas sensors small enough to go anywhere, powerful enough to matter

Interlink Electronics 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 this platform a go-to sensor element for IoT wearables, smart home devices, and distributed air quality networks.

The platform brings decades of electrochemical sensing research into reliable, low-cost gas detection architectures for compact consumer and industrial devices.

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 Products

Three product tiers — sensor elements, signal-conditioned modules, and complete instruments — let engineers choose the right level of integration for their application.

Gas Sensor Elements

18 products

Printed 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.

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Gas Sensor Modules

2 products

DGS2 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.

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Gas Sensor Instruments

0 products

Complete sensor systems, analyzer instruments, and development kits. Starting from $59. Integration and calibration performed at the factory. Contact for custom design support.

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Gases Detected

Interlink sensor elements and modules are available for the target gases represented in the current SPEC product catalog, including standard and high-sensitivity variants for select analytes. Contact the team for application-specific guidance or gases not listed.

CO

Carbon Monoxide

CO-HS

High-Sensitivity Carbon Monoxide

O₃

Ozone

O₃-HS

High-Sensitivity Ozone

NO₂

Nitrogen Dioxide

NO₂-HS

High-Sensitivity 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

RESP

Respiratory Irritants

TBM

Tert-Butyl Mercaptan

Applications

Interlink 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.

Interlink 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

Technology Position

Printed electrochemical sensing for battery-powered devices

This platform's core contribution is the miniaturization of electrochemical gas sensing into printed, plastic-laminated elements that fit inside compact consumer and industrial devices without giving up selectivity, linearity, or long operating life.

That platform is what makes this technology relevant inside Interlink: it extends gas sensing beyond traditional industrial instruments into wearables, smart-home products, indoor air quality devices, and other always-on battery-powered systems.

Interlink Gas Sensing Ecosystem

Complete gas sensing solutions across the Interlink group

This technology platform sits within Interlink's connected gas sensing ecosystem alongside KWJ Engineering, Eco Sensors, 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.

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