Precision Devices, Inc. is a manufacturer of precision crystals, filters and oscillators located in Middleton, Wisconsin. The company offers its products in accordance with MIL-PRF-3098 and MIL-PRF-38534.

* Crystals
* Crystal Filters
* Oscillators

PDI's products are widely used in complex Radio, RF/Microwave, GPS, Instrumentation and MIL-AERO applications. Additional product offerings include low cost, commercial grade crystals and oscillators for competitive consumer applications.