MB Sentinel
Verified StoreMB Sentinel is a Stephenville, TX manufacturer of anti-theft, lockable mail and package delivery boxes for homes and gated entrances.
Verified Coupons (3)
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Get an Extra 5% Off Store-Wide
Beat the crowd and start saving. Make your purchase today using this MB Sentinel coupon.
Expires September 28, 2026
Get an Extra 5% Off Store-Wide
More of what you want, less of what you don't. Your bargain is waiting at MB Sentinel.
Expires October 3, 2026
Free Shipping On All Order
Get it immediately, instead of regret later! Take this MB Sentinel coupon before the amazing deals end!
Expires September 29, 2026
Editor's Verdict
👍 Pros
- ✓Genuine, patented anti-theft design backed by a named founder-inventor
- ✓A+ BBB rating with a multi-year operating history and clean public record
- ✓Generous 100-day return window for a high-value security purchase
- ✓Made-to-order manufacturing with real US-based production
👎 Cons
- ✕Premium pricing (over $3,000 for this model) is a significant investment compared to standard mailboxes
- ✕Product warranty coverage (10 days) is notably shorter than the return window, which shoppers should clarify before buying
- ✕Made-to-order lead time of 3-4 weeks means it's not an instant-delivery purchase
- ✕Independent third-party review volume (e.g., Trustpilot) is still very limited
How to Use Coupons
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Frequently Asked Questions
Shipping is calculated based on the product and destination at checkout; because items are made to order, orders typically ship within 3-4 weeks.
MB Sentinel offers a 100-day return window so customers can try the box and return it if they're not satisfied; contact customer support to start the process.
All coupon codes listed on smartstorereview are manually checked and regularly updated by our team to ensure they are active and valid before publishing.
MB Sentinel accepts major credit and debit cards along with standard secure checkout options available through their online store.
Active Deals from MB Sentinel
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Customer Reviews
4.7
★★★★☆
180 reviews
Robert H. Verified Buyer
★★★★★
After two package thefts this box completely solved the problem. Installation took some planning but the build quality and locking mechanism feel genuinely secure.
Diane M. Verified Buyer
★★★★☆
Really solid, well-made unit and the keypad works great. It's a big investment, so I'd recommend budgeting extra time for the 3-4 week production window.
Frank S. Verified Buyer
★★★☆☆
The box itself works as advertised, but I wish the warranty terms were explained more clearly upfront given how much it costs.