Profile: Comstock Inc. manufactures scientific instrumentation for applications in research and analysis in the physical, chemical & biological sciences. We offer time-of-flight mass spectrometers, spherical sector electrostatic energy analyzers, electron monochromators, electron guns, combination ESA-TOFMS, knudsen cells. We offer a series of spherical sector electrostatic energy analyzers from small sizes for tight spaces to larger sizes for high energy resolution or throughput.