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Response Electronics

0345 257 2500

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ERA Wireless Mini Strobe Internal Siren

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For instant audible and visual notification of an house intrusion event, the internal strobe siren has a built-in rechargeable backup battery in the event of power failure.

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  • Wireless plug-in accessory for the ERA miGuard, EasyHome or HomeGuard wireless alarm system
  • Sounds a 90dB siren when activated
  • Strobe light flashes for visual notification
  • Can be used as a stand-alone ‘on-site’ alarm when connected to compatible ERA wireless accessories
  • Up to 40 accessories (sensors and remotes)
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This accessory is compatible with the ERA miGuard, ERA EasyHome or ERA HomeGuard Pro range of wireless alarms.  

Need replacement batteries for your PIR? View recommended replacements

Further information

Technical Spec
Power Battery: 1 x Pre-installed 3.7V Battery
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Full Description

The WS105 wireless plug-in (mains powered) indoor mini strobe siren can be added to any ERA miGuard / EasyHome or HomeGuard Pro burglar alarm system.  Ideal for use in areas of your property up to 40 metres away from the control panel / hub, for instant audible and visual notification of an alarm event. The strobe siren has a built-in rechargeable backup battery in the event of power failure.

The WS105 can also be used as a stand-alone ‘on-site’ burglar alarm system by adding compatible ERA wireless (433MHz) accessories including PIR Movement Sensors, Magnetic Door/Window Sensors and Remote Controls - up to 40 wireless accessories can be added. When set-up as a stand-alone alarm it can also be used as a LED night light.

Internal Siren with a compact plug-in design that communicates wirelessly with you burglar alarm system, so no messy wires. Sounds a 90dB siren when activated and the strobe light flashes for visual notification. Can be used as a stand-alone ‘on-site’ alarm when connected to miGuard accessories or an additional accessory to any current miGuard burglar alarm system. Can accommodate up to 40 accessories (sensors and remotes) when used stand-alone and any number of units can be used per system. There is a mute operation if required and exit/entry delay for arming/ disarming. With an operating range of up to 40 metres (free air). Can be used with any ERA HomeGuard Pro or ERA miGuard or EasyHome alarm system.

In the box: 1 x Mini Strobe Siren, 1 x Pre-installed 3.7V Battery and Instruction Guide.

Please note: If a delay function is activated on any sensors paired to the siren i.e. an alarm trigger is delayed for xx seconds while someone enters the property for example, this will then apply to all sensors paired. Sensors cannot be independently set up as delayed and non-delayed. This accessory is not compatible with the ERA Protect, Y-cam Protect, Response SA or Response SL alarm systems. If you are unsure of compatibility, please check before purchase. Image is for illustration only, design may vary.


We aim to despatch all orders placed before 5pm the same or next working day, upon receipt of cleared payment. Please note we only despatch to UK mainland, Channel Islands, Ireland and Northern Ireland.


Orders are despatched via UK Mail on a next working day service providing the order is placed on the website within the cut off time (postcode exclusions apply). All Scottish Highlands, Channel Islands, Ireland and Northern Ireland deliveries are a 2 day service sent via UK Mail. If you wish to track your order, please contact our Customer Support Team on 0345 257 2500 for details.


Orders sent by UK Mail are charged at the fixed rate of £4.50 on a next working day delivery service. P&P rates apply where delivery is chargeable, products despatched FREE of charge are sent by the appropriate method relevant to the product/order value (not necessarily by a next day courier service).

Please note: Deliveries are not made on Saturdays, Sundays or Bank Holidays. Deliveries will be made on the next available working day.


For Scottish Highlands, Channel Islands, Isle of Wight, Ireland and Northern Ireland deliveries, please select this delivery option at checkout. All items will be sent via courier at a flat rate of £16.72. This is to ensure all orders are securely delivered.


We endeavour to be as accurate as possible with delivery dates, however any dates we specify for the delivery of the goods are approximate only and we shall not be liable for any losses, costs, damages, charges, or expenses that you may incur as a result of a delay in receiving your goods, or subsequent delays that may result from delivery problems. Unfortunately, we are unable to specify a delivery time, as this is under the control of the postal/courier service.



In addition to the manufacturer’s warranty, we offer a supplemental 30-day ‘No Fuss’ money back returns policy. If you decide you do not require the goods, they may be returned within 30 days of receiving them (the cost of outward bound and return postage is your responsibility and is non-refundable, unless otherwise agreed by prior arrangement) for a full refund. A returns reference number must be obtained from the Customer Help Line on 03457 257 2500 prior to the goods being returned.


To receive a full refund the goods must be returned in a resalable unused condition, in their original packaging.  We reserve the right to deduct an amount from the purchase price should the goods be incomplete or in a used condition.  It is the customer's responsibility to ensure that the goods are adequately packaged in order to avoid damage in transit.


Please Note: When returning an item containing a Lithium Battery (3V Coin sized), please remove these from the item and PLEASE DO NOT POST.


Faulty Goods & Guarantees

In the unlikely event that a product purchased from ERA/ Response Electronics does not operate upon arrival or develops a fault during the warranty period, the following applies:


  1. To report a fault and to arrange the return of faulty goods please contact our Customer Helpline on 0345 257 2500.
  2. One of our helpline technicians will discuss the nature of the fault with you, as we often find that 'faults' are configuration or compatibility issues that can be resolved over the telephone and in such cases, we can help you get your product working, saving you the trouble of returning a non-faulty item. This in no way affects your statutory rights and is simply something we ask our customers to perform in order to ensure that products returned are genuinely faulty and to speed up the product exchange/refund/replacement process. Upon testing the returned product, should it be found not to have a fault then we will contact you to discuss further.
  3. If we agree to Refund your Return Postage Costs, we will only do so, providing you supply us with proof of return, such as a scanned copy or photocopy of the Receipt for Postage. The Returns Reference Number as obtained from our Customer Helpline must be quoted in all correspondence.
  4. We will only refund items returned to us by the agreed method of postage.  We are not responsible for the difference in postal costs where you have chosen to return the product to us by a more expensive means


Please ensure you return the product in its original packaging and with all product component parts as supplied, including but not limited to: manuals, accessories, cables.


Please Note: If a receipt is not provided we are not obliged to refund your postage. The Postage Frank mark on the package is not Proof of Postage and will not be accepted.


Right to Cancel

Your Statutory Rights under the EU Consumer Rights Directive (2011/83/EC)

If you are contracting with us as a consumer online or by phone, you have a statutory right to cancel all or part of your contract at any time up to 14 working days after the day on which you receive the goods or services you ordered.  For full details please see the ‘Right to Cancel’ web page.