100W AlarmHornX — Turns your vehicle into an impregnable fortress full of protection and control | Kalsten
Protect your vehicle – finally sleep worry-free!
Forget about the fear of break-ins! This powerful alarm signal keeps unwanted intruders away and gives you the reassuring feeling of true safety around the clock.
Why no driver wants to do without this protection
✓ Sturdy & reliable – your protection that never lets you down: Designed for continuous use, it withstands wind and weather, keeping the alarm system always ready.
✓ Direct control – encourage your vehicle instantly: The integrated PA system with microphone allows you direct and loud communication – when it matters.
✓ Compatible with all 12V vehicles – protection without limits: Whether car, truck, boat, or RV – turn any vehicle into an impregnable fortress.
✓ Lightning-fast installation – easy & without technical knowledge: Thanks to clever wiring, your vehicle is secured in no time – even without prior experience.
Frequently Asked Questions:
Can I install the system without technical knowledge?
Yes! Thanks to the easy-to-understand wiring, even beginners can install it effortlessly. A quick look at the power supply is enough – then you're ready to go.
Does the alarm horn fit my vehicle?
Our alarm is compatible with all common 12V systems – whether small car, large truck, or boat. Protection you can count on.
How loud is the alarm really?
With 7 powerful sound signals, the device ensures that no one gets too close to your vehicle. Volume that commands respect and guarantees attention.
Product Details:
Color: Deep black – subtle and strong
Size: Compact & space-saving – perfectly integrated
Supply voltage: 12 V – suitable for most vehicles
Scope of delivery: 1x 100W Power Alarm Horn siren set
Note: For maximum effect, ensure proper wiring. Color tone may vary slightly depending on the screen.
Scope of Delivery:
- 1x 100W AlarmHornX™ siren speaker set
- 1x integrated microphone for direct PA communication
- All necessary components for quick, stress-free installation
Free standard shipping on all orders. No minimum purchase.
- Ships to: United States
- Processing: 1–4 business days (Mon–Fri)
- Transit: 5–10 business days
- Total delivery time: 6–14 business days
- Order cut-off: 5:00 PM PST
You will receive a tracking number by email once your order ships. Please allow up to 48 hours for tracking to update.
See our full Shipping Policy.
You have 14 days from delivery to request a return.
- Email support@open.shop with your order number to start a return.
- Items must be unused, complete, and in their original packaging.
- Return label: flat $9.99 USD, deducted from your refund — nothing to pay upfront.
- Damaged, defective or incorrect items: we cover all return and replacement costs.
- No restocking fees.
- Exchanges: contact us and mention "exchange" — the new item ships once your return arrives.
- Refunds are issued within 7 business days of inspection.
See our full Return Policy.
Questions about your order or our products? We're happy to help.
Open
Hooizolder 214
Drachten Friesland 9205CD
Netherlands
Email: support@open.shop
Customer Service:
Monday to Friday, 8:00 AM – 6:00 PM PST (excluding public holidays)
We reply to all messages within 24 hours on business days. Weekend messages are answered on Monday.
For quick answers, visit our FAQ page or use our Contact Form.
