Скачать или смотреть Wired Entry Alert System Reflective Break Beam (demo)

https://specialtyalarms.com/collectio...

Know When Someone's Coming
The Seco-Larm Wired Entry Alert System Reflective Break Beam is perfect for garage doors, overhead doors, or entry detection for store fronts. Other applications: offices, schools, warehouse, vehicle detection (driveway alert), etc.
Retro-reflective design.
Perfect for monitoring an entrance or use as an entrance indicator.
Will make "ding-dong" sound or siren sound when the beam is interrupted.
Speaker volume can be adjusted or turned off.
When in siren mode, sounding time is adjustable from 3 to 30 sec.
9VDC adapter included.
All components plug into each other. No hard wiring required. 32ft Cable from speaker to sensor.
Typical Applications:
Safety sensor for garage doors.
Overhead doors security sensor.
Entry detection for store front.
Other applications: offices, schools, warehouse, vehicle detection, etc.
Contents
NIR retro-reflective sensor
Reflector
Speaker
9VDC 200mA power adapter. 6ft Cable

https://specialtyalarms.com/collectio...