Visitor Annunciator(DC) NO.6638
● Act by body infrared motion and wireless
   receive separately .
● The sensor range is 3-6 meters at 95 degree
● Also used as wireless remote control doorbell.
● Sensor supply by AC/DC,receiver battery:3xAA.
3 IN 1 Alarm NO.1088 Vistor Annunciator(AC) NO.6038 Visitor Annunciator(DC) NO.6638 PIR Sensor Eeminder NO.1238 Recordable Reminder NO.2036 Twin Sensor Doorbell NO.3036