Kalsten | Anti-collision Travel Door Stopper Alarm
Are you living by yourself and feeling vulnerable at night? Or perhaps you're on a business trip, anxious about your safety while you rest? With this anti-theft door lock, you can finally stop worrying about break-ins while you sleep. It’s as if you have your own personal security guard.
Product Details:
- Model: Alarm Door Blocker
- Material: aluminum alloy
- Purpose: secures the interior door
- Compatible door thickness: 5-35mm
- Powered by two CR2032 batteries
- Sound level: 80 decibels
- Indicator light blinks every 6 seconds
- Battery life on standby: 3 months
- Activates after flashing
- Up to 60 activations per battery life
- Beep duration: 5 seconds each
Contents Included:
1 x Travel Door Stopper Alarm for Anti-collision
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.
