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[[Category:Indicators]]{{Knoppen}} | [[Category:Indicators]]{{Knoppen}} | ||
[[File:Rotary Blade Level Indicators.jpg|thumb|right]] | |||
'''Rotary Blade Level Indicator''' is a full, empty or demand indicator with reinforced blade shaft . | |||
==Features== | |||
* mainly as empty or demand detector | |||
* the reinforced blade shaft prevents the buckling of the shaft even if there is a breakdown of bulk bridging | |||
* expensive protecting roofs are not needed | |||
* as full indicator, if the blade shaft has to resist against heavy loads | |||