Applications & Features:

• Safety sensor for garage doors
• Overhead doors security sensor
• Entry detection for store front
• Other applications: offices, schools, warehouse, vehicle detection, etc.
• Retro-reflective design.
• Range: Up to 22 feet (7m)
• 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 seconds.
• 9VDC adapter included.
• All components plug into each other. No hard wiring required.
• Includes the following:
  • NIR retro-reflective sensor.
  • Reflector.
  • Speaker.
  • 9VDC 200mA output adapter.