Steute Industrial Controls, Ridgefield, CT, offers wireless, batteryless pushbutton switches that feature an internal electrodynamic energy generator so no battery is required. Actuation of the pushbutton sends a wireless telegram to one or more compatible, easily programmed receivers. The switches are available for operation at 915 MHz or 868 MHz, and are provided with six selectable pushbutton color plates. Maximum transmission range is 60 m indoors and 700 m outdoors. They have a mechanical life expectancy of more than 800,000 actuations, and an operating temperature range from –20 to +65 °C.

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