Fosmon 2 Pack WaveLink 51018HOM Add-On Door Contact Sensor Unit (No Receiver) - White
Fosmon 2 Pack WaveLink 51018HOM Add-On Door Contact Sensor Unit (No Receiver) - White
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About This
- [EXPAND WAVELINK FOSMON DOORBELL SYSTEMS] Perfect solution for expanding your Fosmon Doorbell System with this additional door sensor transmitter. Compatible with: 51004HOM -Fosmon WAVELINK Wireless Entry Alert Doorbell 51005HOM - Fosmon WAVELINK Wireless Motion Doorbell Alert Sensor 51007HOM - Fosmon WAVELINK Wireless Door Open Chime 51009HOM - Fosmon WAVELINK Wireless Entry Alert Doorbell (Black)
- [MODERN AND CONTEMPORARY DESIGN] Never miss anyone at the door. The wireless and portable design works well in home, work, retail stores, salons, and business environments.
- [MAGNETIC DOOR SENSOR] With your Fosmon WAVELINK doorbell system installed, this magnetic door sensor activates when the magnetic stripe is separated notifying the receiver when the door has been opened.
- [BUILT-IN LED INDICATOR] The transmitter features an LED indicator that creates a visual alert for the hearing impaired.
- [EASY TO INSTALL] Wire free and easy to install.
Overview
- Color : 2 PACK
- Brand : Fosmon
- Power Source : Battery Powered
- Compatible Devices : Fosmon WAVELINK Wireless Entry Alert Doorbell (51004HOM), Fosmon WAVELINK Wireless Motion Doorbell Alert Sensor (51005HOM), Fosmon WAVELINK Wireless Door Open Chime (51007HOM), Fosmon WAVELINK Wireless Entry Alert Doorbell (Black) (51009HOM) Fosmon WAVELINK Wireless Entry Alert Doorbell (51004HOM), Fosmon WAVELINK Wireless Motion Doorbell Alert Sensor (51005HOM), Fosmon WAVELINK Wireless Door Open Chime (5… See more
- Product Dimensions : 2.95"L x 1.97"W x 0.63"H

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SMART HOME FAQ
Yes — many modern devices support multiple platforms.
Matter-certified devices can work across Alexa, Google Home, and Apple HomeKit at the same time.
Not always.
Smart bulbs, plugs, cameras, and video doorbells are often easy DIY installations, while full security systems may need professional setup.
Many devices still work manually or through local control.
You may lose remote app access, but locks, lights, and thermostats often continue basic functions.
Security depends on the device and setup.
Use strong passwords, trusted brands, firmware updates, and secure Wi-Fi for better protection. Privacy and unauthorized access are common concerns in smart homes.
Most homeowners start with:
Smart Security Cameras
Smart Door Locks
Smart Thermostats
Smart Plugs
Video Doorbells
Yes.
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It depends on your ecosystem.
Alexa → widest compatibility
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Apple HomeKit → best privacy
Home Assistant → advanced control
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