Entry Alert System. Reflective beam sensor with chime for door entry indication. "Ding-dong" or siren sounds. Range: Up to 22ft.
Features:
| Type | NIR Retro-Reflective Entry Alert System | 
| Sensing Range | 22′ (7m) | 
| Operating Voltage | Sensor: 9-15 VDC, Chime: 9~15 VDC | 
| Total Current Draw | 100mA Max. | 
| Standby Current | 30mA Max. | 
| Operating Temperature | -4º~122º F (-20º~50º C) | 
| Speaker Response Time | ~1 sec. for Chime, 30 sec for Alarm | 
| Speaker Volume | Adjustable from 0~max | 
| Alarm Time Range | Adjustable 3~30sec for alarm | 
| Speaker Output | Chime / Off /Alarm (select by switch) | 
| Mounting Brackets | All included | 
| Light Source | IR LED |