Security against unauthorised access is just as high with 2-arm turnstiles as with 3-arm turnstiles, and at comparable investment costs.
In case of emergency, especially indoors, the 3-arm option with fold-down arms has long been used as reliable safety technology. The 2-arm technology is the logical next step in development after the folding-arm turnstile. It takes the above advantages and adds a new dimension of security, economy and comfort.
Security: No dangling arms to stumble over. Immediate restoration of checkpoint mode after the all-clear means less time in the uncontrolled open phase and lowers the risk of unauthorised entry.
Economy: No more complicated escape mechanisms. This reduces investment and maintenance costs and increases the economic lifespan and availability.
Comfort: Barrier-free access for the disabled and persons with strollers or heavy luggage. Standard pedestrian access and barrier-free entry in the same lane. Nearly noiseless operation.
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