Under the requirements of BS5839-6 2019 a Grade D1 system is defined as a system with one or more mains powered devices containing a tamper-proof standby power supply (Battery).
All of the below devices are suitable for use as part of a Grade D1 fire alarm system.
Grade D1 Systems
Under the requirements of BS5839-6 2019 a Grade D1 system is defined as a system with one or more mains powered devices containing a tamper-proof standby power supply (Battery).
All of the below devices are suitable for use as part of a Grade D1 fire alarm system.
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HM-SN-1
> 230V mains powered alarm
> 10 year sealed back-up battery
> Smart RF ready£45.14 £37.62 As low as £43.34 £36.12
In Stock -
SM-SN-1
> 230V mains powered alarm
> 10 year sealed back-up battery
> Smart RF ready£45.14 £37.62 As low as £43.34 £36.12
Low Stock
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