The Lab CPG detector offers a large volume CZT detector in a coplanar grid (CPG) electrode configuration. The application of the CPG electrode structure creates an electron-only collection device that allows for a reduction in tailing caused by the trapping of charge in the CZT crystal. This package provides superior detector performance ideal for typical radiochemistry laboratory applications where a high resolution and low background signal is paramount. The compact housing includes the detector element and preamplifier electronics. Connections on the back of the detector provide easy connection to both NIM-based and desktop MCA electronics.