About this item

• DEVICE-TO-DEVICE PAIRING allows for two or more devices, like your Contact Sensor and a Siren Alarm, to be paired together, so they will operate when needed, without WiFi, internet, even without AC power (battery-powered or backed-up devices)!
• INTEGRATE & AUTOMATE: Snip off the reed switch sensor and connect the wires directly to relays, alarm panel outputs, switches, buttons, high security or specialized door, gate, roof hatch, garage door sensors. Trigger automations from the sensor, making the connected device or equipment smart.
• Go wireless with this self-powered sensor - simply place it in the desired location. No need for wires, digging, conduits, or an electrician.
• WHY PAY A MONTHLY FEE, when you can protect it for free? Self-monitor and save when you take advantage of our many ways to be notified of alarms and off-normal events in and around your home or business. See the"Know Now!" section below for more info!
• Looking for a siren? Search B0887SMPKK for the indoor Siren Alarm, or search B092QR82P1, B09V2DXPPW, B0BWYLT3JB, B0BZHPQ1PK for outdoor models.
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• PROTECT YOUR PERIMETER and prevent crime at your property line! With our LoRa-based up to 1/4 mile wireless range, you can now put security devices where it was once very costly, or impossible. Vehicle and man gates, pool gates, remote buildings, shed and barn doors, etc.
• REQUIREMENTS: Android or Apple smartphone, wired ethernet port or stable WiFi connection (2.4 GHz band, only).
• Looking for a fob to arm/disarm your Contact Sensor? Search B0978V4WQC for the FlexFob or B092M1QQ5M for the AlarmFob or B0BRCX6HVK for the SirenFob (siren products, required, not included)
• A SMART START! Everything you need to start your smart home security system: two YoLink Outdoor Contact Sensors (smart door, gate, lid, window monitor) with one YoLink Hub. Supports 300+ devices from our full product line. Add more hubs for large homes, high-rise condo buildings, etc. Two AA batteries, good for 5+ years standby, are included!
• Looking for indoor door sensors? Search B085HTMGYV. Looking for a garage door sensor? Search B07Z7QQV8K