Variodyn One Voice Alarm System: alarm may sound too quiet in an emergency
In some firmware versions, a defect can cause an individual volume setting to apply to the whole system, so the alarm may be too quiet, heard too late, and people could be delayed in getting to safety and risk injuries.
What to do
The product has been withdrawn from the market, and affected customers have been informed of the safety risk and actions to take, including a firmware update. The notice says it is only sold to specialist installers and distributors, not to private households.
Notice details
- Product
- Variodyn One Voice Alarm System
- Company
- Variodyn One
- Hazard
- The product presents a serious risk of injuries as, when activated, the alarm system may produce a sound that is too quiet.
- Class or risk level
- Serious risk
- Identifiers
- PSD notification number: 2603-0279
- Brand: Variodyn One
- Alert date
- April 20, 2026
- Published on GOV.UK
- April 20, 2026
- Listed on Recalled Today
- April 20, 2026
The headline, summary and steps above are written in plain English from the official notice below. Identifiers are copied exactly as the agency published them. Always check the official notice before you act.
Official notice
The notice's own wording from OPSS.
Product Safety Report: Variodyn One Voice Alarm System (2603-0279)
- Risk level
- Serious risk
- Measures taken
- modification-programme; Withdrawal from the market
- Summary
- Product: Variodyn One Voice Alarm System Hazard: The product presents a serious risk of injuries as, when activated, the alarm system may produce a sound that is too quiet. Corrective action: The product has been withdrawn from the market. Affected customers have been informed of the safety risk and actions to take, including a firmware update.
- Product information
- Type: Home Safety/Fire Prevention - Public Fire Alarms Brand: Variodyn One Country of Origin: China Product Description: The VARIODYN ONE is a voice alarm system for buildings. The voice alarm system is used to inform people via loudspeakers – in everyday situations (e.g. announcements) and in emergencies (e.g. evacuation instructions in the event of a fire). It is used in large, publicly accessible buildings (e.g. shopping centres, schools, hotels, so-called “projects”). It is only sold to specialist installers and distributors, not to private households. Product Report and Image: Link to product image and PDF Affected Part Numbers Part Numbers: Description 585000: INC w/o any optional modules 585000.21: INC w/ DAL Module 8 DAL ports & 12 GPIOs 585000.22: INC w/ DANTE Module 8X8 & 12 GPIOs 585000.23: INC w/ Aud In/ Out Module & 12 GPIOs 585000.31: INC-D G2 with 8 DAL ports & 14 GPIOs 585000.32: INC-DANTE G2 w/ 8x8 DANTE & 14 GPIOs 585000.33: INC-A G2 w/ 6 x audio IN/OUT & 14 GPIOs
- Hazard
- The product presents a serious risk of injuries because, if an emergency were to occur, there is a risk the system may produce a sound that is too quiet. The INC has a preset alarm volume, however in some firmware versions, there is a defect that can cause an individual volume setting to apply to the entire system. If the alarm is not heard or heard too late by people in the building, they may be delayed in getting to safety and may be at risk of receiving injuries. The product does not meet the requirements of Regulation (EC) 305/2011.
- Corrective action
- The product has been withdrawn from the market. Affected customers have been informed of the safety risk and actions to take, including a firmware update. Additional information PSD notification number: 2603-0279 Notified by: Local Authority Trading Standards
Contains public sector information licensed under the Open Government Licence v3.0. Open Government Licence
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