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KNOBWELL WiFi Door Sensor, Smart Window Door Sensor Alarm, Door Open Detector with Alert Notification Compatible with Alexa, Entry Detector Sensor for Home Security and Home Automation

Price:

40.92


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KNOBWELL WiFi Door Sensor, Smart Window Door Sensor Alarm, Door Open Detector with Alert Notification Compatible with Alexa, Entry Detector Sensor for Home Security and Home Automation

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  • 【Real-time Alert On Your Phone】KNOBWELL door and window alarm sensor is designed to monitor the open or close status of any entrance; An alert notification will automatic send to your smartphone once the sensor triggered. The smart door lock will automatically lock when the WiFi door sensor senses the door is closed.
  • 【Multi-Scenes Application】You can install the door sensor on front doors, windows, garage doors, liquor cabinets, safety deposit box, pet doors and more. The contact sensor is also a good option as a mailbox sensor.
  • 【Low Battery Warning】This door security alarm sensor with low power consumption offers a battery life of more than 2 years. Super-long battery life avoid replacement frequently. When the battery is running out, you will receive an App notification.
  • 【Easy Installation】No Need to use complicated tools when installation, the door open alarm comes with 3M sticker, which is easy to install. The installation distance between the magnet of the alarm system and the host should not exceed 22mm. Please read the manual carefully before use.
  • 【Reliable Service & Warranty】Our products are backed by a 30-day money-back guarantee, 1-year product warranty and lifetime customer support from the date of purchase. If you have any problems, please feel free to contact us at any time.

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  • Compatible Devices
  • Color
  • Battery Description
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Alarm Sensors
Brand Knobwell
Power Source Battery Powered
Compatible Devices Home Security System
Color Grey
Battery Description Lithium
Product Type Alarm
  • Buy Two or More Offer
    Save 10% when you buy two or more items.
  • Next Purchase Offer
    Get 5% off your next purchase.
  • Delivery Offer
    Enjoy free delivery on orders above $200.
  • Orders are processed and shipped from Washington
    Orders are processed and shipped from Washington
Delivery Detail
Estimate delivery times: 12-26 days (International).
3-6 days (Domestic)
Safe Checkout
Guaranteed Safe Checkout
Return Policy
30-Day Return Guarantee
Confidence-backed purchases with 30-day return support.
Free Return Pickup
Free return pickup available
We’ll handle returns from your doorstep at no extra cost.


Specification::
Material: ABS Plastic
Color: Grey
Wireless type: Only Support 2.4 GHz WIFI (5G is not supported!)
Stand-by Current: <5uA
Induction Range:<22m
Voltage: 3V
Battery Life: 2 years(10 times a day)
Main Body's Size: 41mm*27mm*11.5mm
Deputy Body's Size: 41mm*10mm*11.5mm

Package list::
1 * Wifi Door and Window Sensor Main Body
1 * Door Sensor Deputy Body
1 * Instruction Manual
1 * Adhesive Sticker

Lights Status::
Pairing——Fast flickering
Sensor close/open——Flicker once
Close/open on low power——Flicker 3 times
Reset to default setting——Light up for 1 seconds

Technical Details

Number of Batteries1 CR2032 batteries required. (included)
Voltage3 Volts
Control MethodApp
Mounting TypeSurface Mount
Sensor TechnologyContact Sensor
ManufacturerKNOBWELL
Part NumberFBA-DS221-GR-JOY-WP
Item Weight1.6 ounces
Package Dimensions1 x 1 x 1 inches
Batteries1 CR2032 batteries required. (included)
MaterialPlastic
Item Package Quantity1
Included ComponentsDoor Sensor*1 Instruction Manual*1 Adhesive Sticker*1
Batteries Included?Yes
Batteries Required?Yes
Battery Cell TypeLithium Manganese Dioxide
Description PileLithium

Shipping & Delivery

At GofinchKart Australia, we aim to deliver your order quickly and safely.

Domestic Shipping (Australia):

Orders are typically delivered within 3–7 business days.

International Shipping:

Estimated delivery time is 12–26 business days, depending on the destination and customs processing.

Once your order has been dispatched, you will receive a tracking number. Delivery times may vary during public holidays or due to unforeseen delays.