infrared waterproof sensor welcome doorbell

1.Infrared sensors, sensitivity is strong 2. not impact by light 3. a variety of installations

Specifications and features

 

1.free choose the music

2.easy for set

3.infrared rang:7meters

4.automatic infrared sensor

wireless easy mounting design never effect your inner decoration and be placed at any location. Can last 30 seconds of the alarm sound, with alarm, the deterrence function 

1.doorbell powered by :4 x AAA battey (not included)

2.Operating current:≤150mA3.security alarm system 

Scope of application shops, warehouses, office buildings, plant, home and other

package includes

1.     1x doorbell

2.     1x alkaline battery (not included)

useing  way

1. Fixes the foundation in is away from ground 2 meter about the places. 2. Can lying flat can also be hung on the wall3.Doorbell switch to the voice file, or alert file

Tipe

1.When the doorbell when the sound is weak, replace the battery2.replace the batteries when the doorbell does not function

infrared waterproof sensor welcome doorbell