MCT-43 433MHz Wireless Door/Window Magnetic Sensor for GSM Home Security Alarm Systems

The MCT‑43 is a compact, battery-powered wireless magnetic sensor designed for use with GSM or RF-based home security alarm systems. It detects door or window opening events via a magnetic reed switch and transmits alerts to the central control panel. It does not include any alarm or siren, making it a simple sensor accessory that works as part of a larger alarm system.

Features:

• Wireless operation at 433 MHz with built-in omnidirectional antenna

• Easy peel-and-stick installation, or optional screw mounting

• Low power consumption with passive standby and active transmission modes

• Low-voltage alert via flashing LED when battery is nearing depletion

• Compatible with multiple GSM/RF alarm systems (learning-code pairing)

• Sealed ABS housing with compact dimensions for discreet placement