The U.S. Government is seeking sources for factory calibration, diagnostics, and repair services for six Government-owned Halide Detectors, Model F-1000-HD. The contracting office intends to award on a sole source basis but is exploring vendor capabilities to support a competitive procurement. All small businesses, including those in 8(a), Small Disadvantaged, HUBZone, Service-Disabled Veteran-Owned, and Women-Owned categories, are encouraged to respond. Interested parties should identify their ability to meet the requirements at a fair market price. Additional details are available in the attached sources sought notice and draft PWS/PRS.