Precision Lightweight GPS Receiver
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The Precision Lightweight GPS Receiver (PLGR) is a handheld, single frequency, military GPS receiver that incorporates the Precise Positioning Service - Security Module (PPS-SM) to access the encrypted P(Y)-code GPS signal.
Introduced in January 1994, and extensively fielded until 2004 when it was replaced by its successor, the Defense Advanced GPS Receiver (DAGR). In that time period more than 165,000 PLGRs were procured worldwide, and it is the most widely used GPS receiver in the US military. The PLGR was originally delivered with a six-year warranty, however this was extended to 10 years in June 2000.
The PLGR measures 9.5" X 4.1" X 2.6" and weighs 2.75 lb. with batteries.