Barrier gates are used as passenger flow facilities in many applications where need pedestrian security control, in the category of barrier gates, they are known as half height turnstiles(waist height turnstiles), tripod turnstiles, revolving gate, three arm rotary turnstiles, full height turnstiles, optical turnstiles(retractable flap turnstiles), swing barrier gate, P swing gate.

Global Keyaccess provides 1.5mm thickness 304# stainless steel and brushed finish surface. It can have single way access or double way access(enter from only one end or enter from both end), anti-clamping function, arm default length is 500mm, arm default locking time is 10 seconds (adjustable), infrared sensor for illegal invasion alarm and anti-tail-after alarm, LED direction indicator. 

Barrier gates could have manual control and electronic control options, for manual control, it only has internal mechanism to be operated, for electric control, it has combined mechanism and control main board with Left-revolving and Right-revolving and COM ports, which are controlled by pulse signals sent from control center.

There are test, reset, setup buttons on main board so it is ease of maintanance and friend-use. 

Note:

Pulse signal, A rapid, transient change in the amplitude of a signal from a baseline value to a higher or lower value, followed by a rapid return to the baseline value.