External alarm siren Commax MR-100B/G — outdoor siren for security systems (model MR-100B/G)

The Commax MR-100B/G external alarm siren is an outdoor signaling device designed to work with security and alarm systems. It delivers clear audible alerts to indicate intrusions or emergency events and is built with a weather-resistant housing intended for wall mounting. The unit uses a standard wired interface for integration with a variety of alarm control panels and is suitable for residential and small commercial installations where external notification is required.

Advantages

The siren offers a robust enclosure that protects internal components from rain and dust, enabling reliable operation in outdoor conditions. Its sound output is tuned for clear, attention-grabbing alerts while maintaining straightforward electrical connections for fast integration with existing systems. The design includes mounting provisions for secure attachment to exterior walls and a finish resistant to common environmental wear.

Suitable for

• Residential homes and apartments requiring external alarm notifications
• Small commercial premises such as shops and offices
• Perimeter security and gate or yard monitoring
• Integration with wired intrusion alarm control panels

Key specifications

• Application: outdoor external alarm siren for security systems
• Housing: weather-resistant enclosure suitable for outdoor installation
• Mounting: wall-mount design with screw fixing points
• Interface: standard wired electrical connections for alarm panel integration
• Function: audible signaling for intruder and emergency alerts

How to use

Install the siren at a visible exterior location following local electrical codes and the alarm system manufacturer's guidelines. Secure the unit to an external wall using appropriate fasteners for the surface material, then connect the siren to the alarm control panel using the designated wired terminals. Configure the alarm panel output to activate the siren during alarm events and test the connection and sound output after installation to confirm proper operation.

Usage recommendations

Place the siren at a height and position that maximizes sound coverage while protecting the unit from direct exposure to extreme weather whenever possible. Regularly inspect mounting hardware and external wiring connections and perform a periodic functional test to ensure the siren remains operational.