Scantronic HUD-2R-FXD | Wireless Fixed Hold-Up Device | Dual Button, Keyless Reset

FAQs

What is the difference between confirmed and unconfirmed hold-up alarms?

An unconfirmed hold-up alarm (HUA) is generated when the device is activated in a manner that signals a potential emergency but may not automatically result in police dispatch, depending on alarm monitoring company protocols and contractual arrangements. A confirmed hold-up alarm is generated through specific dual-button activation sequences that provide verification of a genuine emergency situation, qualifying for immediate police response under UK police response policies. The HUD-2R-FXD’s ability to generate confirmed HUA from a single device is significant because it enables users to trigger guaranteed police dispatch without requiring verification from multiple sources or devices. This functionality is particularly valuable in commercial environments where staff under duress need immediate law enforcement response, or residential situations where occupants face genuine threats requiring urgent police assistance.

How does the dual-button activation work and can it be configured for single-button operation?

The HUD-2R-FXD features two prominent red buttons that can be configured for different activation modes during system programming. In dual-button mode, both buttons must be pressed simultaneously or in rapid sequence to generate an alarm, which helps prevent accidental activations that could result in false alarms and potential police response charges. This mode provides BS8243:2021 compliance and is typically preferred for commercial installations where deliberate activation is required. The device can also be programmed for single-button activation where pressing either button generates an alarm, offering faster response in situations where speed is critical and accidental activation risk is acceptably low. The configurable activation modes enable installers to balance ease of emergency response against false alarm prevention, with programming options tailored to specific risk assessments and user requirements for each installation location.

What does electronic keyless resetting mean and why is it beneficial?

Electronic keyless resetting means the HUD-2R-FXD can be reset after activation without requiring a physical mechanical key, which was common in older hold-up device designs. Traditional hold-up devices often required specialized reset keys that could be lost, unavailable during critical moments, or create security vulnerabilities if keys fell into wrong hands. The HUD-2R-FXD’s electronic reset is performed through the control panel or via specific button sequences, eliminating the need to maintain, secure, and locate physical reset keys. This simplifies reset procedures for authorized personnel, reduces maintenance concerns about lost keys, and ensures the device can be quickly returned to operational status after testing or genuine activations. The electronic approach also enables remote resetting capabilities when supported by the control panel, potentially allowing monitoring stations or authorized users to reset devices without requiring on-site attendance.

Can the HUD-2R-FXD be used with older Scantronic systems?

Yes, the HUD-2R-FXD offers backwards compatibility with legacy Scantronic radio products and systems, operating in either advanced SSR mode with newer equipment or legacy mode with older 868MHz wireless systems. For legacy 2-way mode operation, the control unit requires firmware v7.03 or higher, and any radio expander must have firmware v3.02 or higher. For legacy 1-way mode, the device works with any control unit or expander compatible with Scantronic’s 700 series radio devices (such as the 734 door contact). For full SSR 2-way mode functionality with advanced features like over-the-air updates and enhanced cybersecurity, control units must operate firmware v8 or higher. This multi-mode capability enables the HUD-2R-FXD to integrate with existing older systems during phased upgrades, protecting investment in installed equipment while providing path to enhanced functionality when control panels are eventually upgraded to SSR-capable models.

Where should hold-up devices be located for optimal effectiveness?

In commercial environments, hold-up devices should be positioned at locations where staff are most vulnerable to threats, typically including reception desks, cashier positions, office areas where staff work alone, stockrooms, or anywhere employees might encounter threatening situations. Devices should be discreetly accessible without being obvious to potential perpetrators, often mounted under desks, behind counters, or in locations where staff can activate them without drawing attention. In residential applications, strategic placement near main entry points enables quick activation if occupants encounter intruders upon entering, while bedroom locations provide emergency response capability during night-time intrusions. Multiple devices throughout larger premises ensure coverage regardless of occupant location during emergencies. The 700-metre radio range enables flexible positioning even in large buildings or across multiple structures, though installers should verify signal strength during commissioning to ensure reliable communication with control panels.

How long do the batteries last and what type are required?

The HUD-2R-FXD operates on two 1.5V AA alkaline batteries with minimum capacity of 2700mAh, providing approximately five years of typical battery life. This extended service life is achieved through extremely low quiescent current consumption of just 12µA during standby operation, with Scantronic Secure Radio’s optimized wireless protocols minimizing power consumption during status updates and supervision signals. Maximum current consumption of 37mA occurs during alarm transmission. The control panel continuously monitors battery status wirelessly, generating low battery alerts providing advance warning before battery depletion affects device operation. The use of standard AA alkaline batteries simplifies replacement compared to specialized battery types, though installers should specify high-capacity alkaline cells (minimum 2700mAh) rather than standard or budget batteries to achieve the rated five-year service life. Battery replacement is straightforward, with the device’s cover providing access to the battery compartment.