doorbell welcome sensor 903 Welcoming Guests Sensor Doorbell

Description:

Fitted with three 1.5V batteries on the 7th, the guests hung on the door edge device will switch out to like the voice file access when three are guests, the guests before the issue to atomatically select the voice. light control range of 3-7 meters, it is recommended that adequate use of light , infrared control range of 8  meters, when the voice weak, please replay the battery in time.

Package included: 

1 x 903 Welcoming Guests Sensor Doorbell 3 x AA1.5V batteries

903 Welcoming Guests Sensor Doorbell