KERUI Wireless Home Window Door Open Sensor Burglar Security Alarm System Alert

Description: 【Door and window contact sensor】: If the door and window are suddenly opened, the magnetic door and window detector from KERUI emits a loud alarm with a volume of 120 dB. It can prevent your child from sliding out or intruders from entering. 【Four alarm modes】: There are 4 different alarm modes: Normal alarm mode: the alarm lasts for a minute when you open the door; Doorbell mode: "Ring", once as a welcome tone. Alarm stop mode: Loud sound when opening the door and loud sound when closing. Command Prompt Sound Mode: Prompt Sound, Instant Beep From soft to very loud, a sound will be played repeatedly to remind you that the door is open until it is closed. 【Easy Installation】: The contact sensor of this safety kit is equipped with a self-adhesive pad, so no tools are required. Simply to use Product Features 【Door and window contact sensor】: If the door and window are suddenly opened, the magnetic door and window detector from KERUI emits a loud alarm with a volume of 120 dB. It can prevent your child from sliding out or intruders from entering. This is a perfect wireless magnetic theft alarm that can keep children, homes, garages, mailboxes and businesses safe. 【Four alarm modes】: There are 4 different alarm modes: Normal alarm mode: the alarm lasts for a minute when you open the door; Doorbell mode: "Ring", once as a welcome tone. Alarm stop mode: Loud sound when opening the door and loud sound when closing. Command Prompt Sound Mode: Prompt Sound, Instant Beep From soft to very loud, a sound will be played repeatedly to remind you that the door is open until it is closed. 【Easy Installation】: The contact sensor of this safety kit is equipped with a self-adhesive pad, so no tools are required. Simply stick the alarm sensor to the door or window. It can also be used as a door stopper, pool door alarm, garage door alarm or sliding door alarm 【Fast automatic switch】 Adopts highly sensitive magnetic sensor design. The contact sensor group can quickly detect the state of the door or window. It is powered by two AAA batteries . 【Built-in remote control button】: Equipped with a remote control button, with arm and disable buttons, easier and more convenient to use. Product description Door sensors can be used in various modes, including as a shop bell or doorbell. Press the SET once to change the mode. 1. Door and window sensors alarm mode / standard alarm mode The door and window alarm secures your windows and doors against unauthorized opening with a 120dB loud alarm sound against theft and deter burglars. The alarm continues for 1 minute, even if the door is closed again. However, it can be stopped manually. 2. Doorbell mode A gentle “ding dong” can be heard when the door is opened - meaning you will be notified when your children are coming home or a customer is entering your store. After opening the door, the security doorbell only rings once. 3. Window / door alarm mode The alarm stops immediately after the door and window sensors are closed. Wireless Door Sensor Alarm for Child Safety - You can use the door alarm safety feature to keep your young children from going outside without permission. Technical parameter Model: KR-D121 Working voltage: 3.0V (powered by 2 AAA batteries) Standby current: <10uA. Working current: <80mA. Receiving frequency: 433MHz Alarm time: 60 seconds Alarm volume: 120DB Alarm Output: open the door and alarm after arming, and trigger the detector to alarm after arming Package includes 1 x D121 Door Alarm Sensor (battery not included) 2 x Remote Controller

Price: 8.45 USD

Location: SHENZHEN

End Time: 2024-03-03T03:10:55.000Z

Shipping Cost: 0 USD