Spectrum Sensors

PTC Thermistors

API offers a broad range of PTC Thermistors for applications ranging from overcurrent protection in electronics to heater elements for bimetals.

NTC Thermistors

API offers thermistors with a two terminal solid state electronic component that exhibits a large, predictable change in resistance corresponding to changes in absolute body temperature.

Temperature Sensing Probes

API's Temperature Sensing Probes & Assemblies are a family of rugged, moisture resistant probes that have proven extremely effective in high moisture and freeze/thaw applications.

Element Segments & Wiper Assemblies

API's Potentiometer Element Segments are available in do it yourself kits and offer greater reliability and the best resolution and output smoothness.

Rotary Potentiometers

API's Rotary Potentiometer offer the best resolution and output smoothness in addition to special linearities and mechanical stops options to ensure a long life.

Linear Potentiometers

API's Linear Potentiometer offers greater reliability and infinite resolution while taking up less space.  Our line consists of various stroke lengths, mounting options, and shaft-end options.

Motorized Potentiometers

Motorized Potentiometers by API offer clean motor operation and infinite resolution with top notch output smoothness.

Hollow Shaft Potentiometers

API's Hollow Shaft Potentiometer offers the longest life, best output smoothness, and infinite resolution in a smaller package.

Hall Effect Rotary Sensors

API's Hall Effect Precision Position Sensoroffers special linearities, shaft configurations, flange mounting configurations, and special gear and mounting fram configurations.

Professional Audio Controls

API's Professional Audio Conrols offer custom resistance values and special electrical slope functions, linearities, electrical angles, and mounting configurations.

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Recent Events

January 31, 2018 (All day) - February 2, 2018 (All day)
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The communications technology landscape is changing daily. IAUG CONVERGE provides the maps and tools you need to navigate it all. IAUG is coming to The Colorado Convention Center for five days of education, networking and innovation. No other event provides a more comprehensive program around integration, managed services, cost management, BYOD, cloud and more.
June 19, 2017 - June 21, 2017
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The Information Assurance Symposium (IAS) will take place from 19th June to the 21st June 2017 at the Baltimore Convention Center & Hilton Hotel. IAS is the premier NSA information assurance event, providing an opportunity for guests to learn and network from cyber security professionals, subject matter experts and solution providers from throughout Government, industry and academia.