Also known as the amplitude limit or range indicator, jib cranes general boom are linked to a range of indicators.

也称变幅限位或幅度指示器，一般的动臂起重机的起重臂上都挂有一个幅度指示器。

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Open-close position indicator. Limit switches for remote indication.

开启-关闭位置指示器。适用于远程指示的限制开关。

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Position indicator with NAMUR is convenient for mounting accessories such as Limit Switch box, Positioner and so on.

NAMUR标准指示器便于安装位置开关、定位器等附件。

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While people who regularly speed are three times as likely to be involved in an accident (according to the Police Driver's Handbook), ignoring the speed limit may also be an indicator of a predisposition for other "anti-social" activities.

BBC: Traffic