AUTO and ON, the barrier closes within 5 secs , during which time both red lights are flashing and you hear a BING sound. If barrier is closed and child stands in front of the motion sensors the lights continue to flash and after 2 secs you hear the sound of a passing train for 5 secs and barrier remains closed for further 2 secs . Then the barrier lifts automatically which takes approx 5 secs and you hear a BING sound and lights are flashing . The barrier remains open for 10 secs no sound no light. Then the barriers closes again within 5 secs with BING sound and flashing lights etc above cycle continues. Requires 3 AA Batteries ( NOT INCLUDED ). AGE 3+
