Interlink Electronics makes sensors that detect force, touch, and gas, selling primarily to OEM customers in automotive, medical, industrial, and consumer electronics markets. The company invented Force-Sensing Resistor (FSR) technology roughly 40 years ago — thin, printed electronic films that change electrical resistance based on applied pressure — and FSR remains the core of its business. Unlike capacitive touchscreens, FSR sensors directly measure force, resist moisture and contamination, and require deliberate pressure to activate, making them well-suited for rugged, industrial, and regulated applications. Beyond discrete FSR sensors, Interlink also makes membrane keypads, piezoelectric sensors, and sensor-integrated textiles for heated garments and wearables. Through acquisitions in 2022, Interlink added a gas and environmental sensing business, making miniaturized electrochemical sensors for carbon monoxide, ozone, and other gases targeting IoT and industrial safety applications. Interlink sells standard catalog components through distributors and develops custom-engineered solutions directly with OEM customers. Custom programs involve longer sales cycles but typically result in sole-source supplier relationships and multi-year production runs, which Interlink views as higher-margin. Interlink operates its own manufacturing in Shenzhen, Scotland, and Fremont. Growth vectors include deepening OEM relationships, smart textiles via its 2024 Conductive Transfers acquisition, integrated multi-modal sensing platforms, and government-funded R&D grants from agencies like NIST and NASA.