Magnetic Contact Switch EM300-MCS

EM300-MCS Magnet Switch Sensor – Smart Door/Window Status & Environmental Monitoring

The Milesight EM300-MCS is a rugged, lorawan®-enabled magnet switch sensor that provides real-time open/close status for doors and windows, while also delivering accurate temperature and humidity readings. Designed for outdoor and industrial applications, this sensor combines magnetic contact sensing, environmental monitoring, and long-range wireless transmission into a compact, IP67 waterproof enclosure. With a replaceable high-capacity battery and support for Milesight D2D protocol, the EM300-MCS ensures secure, low-latency alerts for facility management, smart buildings, factories, and remote infrastructure environments.

Key Features

• Magnetic contact detection with a sensing range of 20–30 mm
• Integrated temperature and humidity sensors for full environmental monitoring
• IP67-rated UV-resistant and waterproof enclosure for indoor/outdoor deployment
• Supports Milesight D2D protocol for gateway-free low-latency device control
• Data storage of up to 2,800 records with automatic retransmission
• Over 10 years battery life with 4000 mAh battery at 10-minute intervals
• lorawan® Class A for ultra-low power, long-range communication up to 10 km
• Quick NFC-based configuration and threshold-based alarm support
• CE, FCC, Telec, RoHS, and ICASA certified for global compliance

Technical Specifications

Ideal Applications

• Smart Building Security (Doors, Windows, Entry Points)
• Warehouse & Remote Facility Monitoring
• Factory and Industrial Automation Safety
• Smart Home Automation
• Environmental Monitoring in Harsh Conditions

Secure Entry. Smarter Sensing. Built for Harsh Environments.

The EM300-MCS combines access control and environmental awareness into a powerful lorawan® sensor—helping enterprises build smarter, safer, and more energy-efficient spaces. Available now from TerraQ Technologies across the MEA region.