Choose any you like, but make sure that it is made by a company that do manufacture working alarms so that it looks the same as a genuine one. These companies also supply LED modules to make them look authentic. An example can be found here. You will also need a 12v dc power supply to operate them. Preferably one with battery back up to keep them going in the event of a power cut for real authenticity.
Having the name of a genuine alarm installer on it would also be advantageous, but a little more difficult to obtain.
If you need to find a tradesperson to get your job done, please try our local search below,
or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Please select a service and enter a location to continue...
Are you a trade or supplier? You can create your listing free at DIYnot Local