When installing a professional intrusion alarm system, one of the most important components is the external siren and strobe. Sirens provide a loud audible warning that deters intruders, alerts occupants, and notifies neighbours when an alarm event occurs.
If you are using a Bosch alarm panel, such as the Bosch Solution 2000, Bosch Solution 3000, or Bosch Solution 6000, you can connect a wide range of 12V hardwired or wireless siren and strobe units. These devices enhance both security visibility and deterrence.
Below is a guide to the most common compatible sirens you can add to your Bosch security system, including their key features and ideal applications.
1. WP06 – Standard External Siren & Strobe
Part Number: WP06
The WP06 siren strobe combination unit is a reliable and widely used external alarm sounder suitable for residential and small commercial Bosch systems.
Key Specifications
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Loud 105 dB siren output at 1 meter
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12V DC operation
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LED strobe light for visual alarm indication
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Dual tamper switches for enhanced security
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Compact round-ended housing design
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Dimensions: 202 × 112 × 70 mm
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Power consumption:
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Siren: 80 mA
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Strobe: 50 mA
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Best for
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Standard external alarm installations
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Residential homes
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Small offices or retail shops
This model provides a strong visible deterrent, making it ideal for front wall installations where intruders can clearly see the alarm system.
2. WP06SS – Satellite Siren with Backup Battery
Part Number: WP06SS
The WP06SS satellite siren is a more advanced version designed with a built-in rechargeable backup battery.
Key Specifications
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100 dB siren output
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Built-in rechargeable battery backup
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Rectangular round-end housing
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Dimensions: 200 × 115 × 75 mm
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Integrated siren and strobe
Benefits
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Continues sounding even if the alarm panel loses power
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More resistant to tampering or cable cutting
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Ideal for high-security installations
Best for
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Warehouses
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Commercial properties
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Homes requiring additional tamper protection
3. SS415 – Weather Resistant Siren Strobe
Part Number: SS415
The SS415 siren strobe is designed specifically for outdoor environments, offering improved weather resistance.
Key Features
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Weather resistant construction
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Selectable siren modes
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12V DC siren
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8-ohm horn output
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LED strobe light
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Integrated tamper switch
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White protective cover
Best for
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Outdoor installations exposed to rain or harsh weather
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Commercial building exteriors
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Industrial sites
This model is commonly used where durability and environmental resistance are important.
4. Slimline LED Siren & Strobe
This slim rectangular siren strobe offers a modern low-profile design while maintaining strong audible and visual performance.
Key Specifications
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105 dB alarm output
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LED strobe light
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Dual tamper protection
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Compact rectangular casing
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Dimensions: 202 × 114 × 45 mm
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12V DC power supply
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Siren: 80 mA
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Strobe: 50 mA
Best for
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Modern homes
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Discreet alarm installations
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Locations with limited mounting space
5. WP70A – Wireless External Siren
Part Number: WP70A
The WP70A wireless siren is ideal when running cables to an external wall is difficult.
Key Features
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Battery powered external siren
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Built-in lithium battery
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IP55 weather resistance
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Wireless transmitter and transceiver
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Up to 200 m open-air RF range
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Full supervision monitoring:
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Tamper detection
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Low battery alerts
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RF interruption monitoring
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For Bosch systems like Solution 2000 or 3000, a 12V relay module is required to trigger the wireless transmitter.
Best for
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Retrofit alarm systems
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Difficult cabling environments
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Large properties or sheds
6. Top Hat Screamer – Internal Siren
The Top Hat Screamer is a compact internal alarm sounder typically installed inside the building.
Key Benefits
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Very loud internal alarm tone
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Compact design for discreet installation
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Ideal as an additional internal deterrent
Best for
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Inside houses or offices
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Alarm cabinets or hallways
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Backup audible alarm inside the property
Choosing the Right Siren for Your Bosch Alarm
When selecting a siren for your Bosch alarm system, consider the following factors:
1. Indoor vs Outdoor Installation
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External sirens provide visible deterrence.
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Internal screamers add additional noise inside the building.
2. Wired vs Wireless
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Wired sirens are more common and reliable.
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Wireless sirens are useful where cabling is difficult.
3. Backup Battery Protection
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Models like WP06SS continue operating even if the power is cut.
4. Weather Resistance
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Outdoor installations should use weatherproof sirens such as SS415 or WP70A.
Final Thoughts
Adding the right siren to your Bosch alarm system dramatically improves security effectiveness. A loud external siren combined with a flashing strobe acts as a powerful visual and audible deterrent, often stopping intruders before they enter the property.
Whether you choose a standard wired siren like the WP06, a battery-backed satellite siren like the WP06SS, or a wireless solution such as the WP70A, these devices integrate seamlessly with Bosch panels and provide reliable alarm notification.
If you are planning to upgrade or install a new alarm system, the team at CCTV Tradie can help you choose the right siren for your Bosch security setup.
Why Buy Your Bosch Alarm Sirens from CCTV Tradie?
When choosing alarm accessories such as sirens and strobes, it is important to purchase from a trusted supplier that understands professional security systems. CCTV Tradie is one of Australia’s trusted security equipment retailers, supplying installers, electricians, and homeowners with reliable alarm and surveillance products.
Authorised Australian Supply
All products sold through CCTV Tradie are sourced through authorised Australian distributors. This ensures genuine products, proper compliance with Australian standards, and full manufacturer support.
Professional-Grade Security Equipment
CCTV Tradie focuses on professional security solutions used by installers and technicians across Australia. Whether you are installing a Bosch Solution 2000, Solution 3000, or Solution 6000 system, the sirens and accessories offered are compatible with professional alarm systems.
Fast Australian Shipping
Orders are shipped directly from Australian warehouses, allowing fast delivery across Australia and New Zealand.
Installer & Trade Support
Trade partners receive access to competitive pricing, product recommendations, and technical support when selecting equipment for new alarm installations or upgrades.
Wide Range of Security Products
Beyond alarm sirens, CCTV Tradie supplies a complete range of security solutions including:
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CCTV cameras and NVR systems
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Alarm panels and detectors
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Intercom systems
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Access control solutions
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Networking and surveillance accessories
This makes CCTV Tradie a convenient one-stop security store for installers and property owners.
Frequently Asked Questions (FAQ)
Can I connect any siren to a Bosch alarm system?
Most Bosch alarm panels support 12V hardwired sirens and strobes. As long as the siren operates on 12V DC and is compatible with alarm outputs, it can typically be connected to Bosch systems such as Solution 2000, 3000, and 6000.
Do I need both an internal and external siren?
It is recommended.
An external siren acts as a visible deterrent and alerts neighbours, while an internal screamer produces loud noise inside the building to drive intruders away.
What is the benefit of a siren with a backup battery?
Sirens with built-in backup batteries continue to operate even if power or alarm wiring is cut. This provides extra protection against tampering.
Are wireless sirens compatible with Bosch alarms?
Yes, wireless sirens can be used with Bosch systems, but they usually require a relay module or transmitter to trigger the wireless signal.
Where should an external alarm siren be installed?
External sirens are usually installed high on the front wall of the building, where they are clearly visible and difficult for intruders to reach.
How loud should an alarm siren be?
Most residential and commercial alarm sirens operate between 100 dB and 110 dB, which is loud enough to alert occupants and neighbours.
