Profile: Leach International is a supplier of relays and aircraft switches. Our products are used in aerospace, military, rail and high-end industrial applications. Our military qualified subminiature and half-crystal can relays are used for both commercial & military applications. Our control devices are used for timing purposes, sensing and protection of current, voltage, frequency & phase fixed, adjustable AC and DC versions. We also supply Lighted switches, indicators, keyboards, panels and custom modules.