Scantronic Two-Way Radio Expander | EXP-2R

Wireless Expansion Module for Scantronic Intruder Alarm Systems

The Scantronic EXP-2R Two-Way Radio Expander is designed to extend the wireless capability of compatible Scantronic intruder alarm systems, enabling reliable communication with wireless devices across larger properties or installations.

Using Scantronic Secure Radio (SSR) technology, the EXP-2R provides advanced two-way communication with strong encryption, ensuring reliable operation and high levels of cybersecurity. It is suitable for Grade 2 installations installed to PD6662:2017, while also offering radio Hold Up Alarm (HUA) functionality in Grade 3 systems.

Available from Alert Electrical, the UK’s trusted supplier of professional security and electrical products.

Extend Wireless Coverage Across Your System

The EXP-2R allows alarm systems to support additional wireless devices and extend coverage in larger buildings or multi-area sites. Devices such as hold-up devices (HUDs) and keyfobs can connect to any expander on the system, helping ensure reliable signal coverage throughout the installation.

This flexibility is especially useful for:

• Large homes and properties
• Commercial buildings
• Multi-floor installations
• Sites where wireless signal coverage needs to be improved

Secure Two-Way Communication

The EXP-2R operates using Scantronic Secure Radio (SSR), delivering encrypted bidirectional communication between the expander and connected wireless devices.

Key benefits include:

• AES128 encrypted communication
• Faster response times for alarm events
• Reduced signal interference
• Improved battery efficiency in connected devices
• Over-the-air updates for future compatibility

This secure communication helps minimise false alarms while maintaining reliable device connectivity.

Flexible Output Control

One unique feature of Scantronic expanders is the ability to provide radio outputs that can control external equipment.

These outputs can be used to operate:

• Motorised gates
• Yard or driveway lighting
• External equipment across large sites

This adds additional automation and functionality to security installations.

Designed for Fast Installation

The EXP-2R includes several installer-friendly features designed to simplify setup and diagnostics.

Key installation benefits include:

• Tri-channel swapping to minimise radio interference
• Semi-automatic addressing with a single button press
• LED diagnostics for quick system status checks
• Full diagnostics and fault reporting via the bus
• Built-in piezo sounder to help locate the device during installation or servicing

These features help reduce installation time and simplify maintenance.

Features

• Two-way radio expander for Scantronic alarm systems
• Compatible with Scantronic Secure Radio (SSR) devices
• AES128 encrypted communication
• Extends wireless device coverage across installations
• Radio outputs for controlling external equipment
• Tri-channel radio frequency swapping
• Built-in piezo sounder for bus location
• LED diagnostics and system fault reporting
• Semi-automatic addressing for quick setup
• Suitable for Grade 2 installations

Typical Applications

• Expanding wireless alarm system coverage
• Large residential security systems
• Commercial alarm installations
• Sites requiring additional wireless device connectivity