Half height turnstile for internal use. 304 grade stainless steel model, can be powder coated to RAL colour of choice. 316 grade stainless steel arms. Can be easily integrated with railings/barriers providing the same look and feel throughout the desired area. Operation: Manually operated arms. Can be controlled via any access control unit which gives out a volt free contact (supplied separately). Free rotation on power failure or activation of fire alarm. Can be alarmed with under or over sensors. Unlocking mechanism adjustable from 2-32 seconds.