Wireless Door/Window Contact Sensor for GT10WC Alarm System (433MHz)

About this product

Know the moment a door or window opens - wireless alerts with your GT10WC alarm system.

Harmony at home starts with knowing what’s happening — quietly, instantly.
This sensor alerts you the moment a door or window opens.

Instant open/close alerts for doors and windows - simple, wireless, reliable

Compatibility (Important)

Works with 433MHz wireless alarm systems that support door/window contact sensors (including GT10WC).

Local support + setup help available.

(No pet-immune note needed — it’s a contact sensor.)

Installation tip: Mount the two pieces aligned and close together (gap ≤ 15mm) so the sensor reads “closed” correctly.

Why You'll Love It:

Instant entry alerts - triggers your alarm system the moment a door or window opens.

Perfect for everyday entry points - front door, back door, sliding doors, windows, garage door (if suitable mounting).

Wireless + clean install - no messy cables; mount, pair, and go.

Small and discreet - modern slim design that blends into your home.

Battery powered reliability - keeps working even during load-shedding (your alarm panel handles alerts).

Great for “arm stay” mode - secure doors/windows at night while you move around inside.

Mini FAQ

Q: Will this work with my alarm system?
A: It works with 433MHz wireless alarm systems that support door/window contact sensors (including GT10WC).

Q: What does it actually detect?
A: It detects open/close. When the door/window opens, the two pieces separate and the alarm system can trigger an alert.

Q: How close must the two pieces be?
A: Keep the gap 15mm or less when the door/window is closed for reliable detection.

Q: Can I put it on a sliding door?
A: Yes - as long as both parts can be mounted securely and stay aligned when closed.

Q: Does it need WiFi?
A: No. The sensor talks wirelessly to the alarm panel. WiFi/GSM alerts (if enabled) come from the panel, not the sensor.