--- product_id: 205033131 title: "Master Lock Set Your Own Combination Portable Key Safe, 3-1/4 inch, Wide (Black)" brand: "master lock" price: "523 kr" currency: DKK in_stock: true reviews_count: 10 category: "Master Lock" url: https://www.desertcart.dk/products/205033131-master-lock-set-your-own-combination-portable-key-safe-3 store_origin: DK region: Denmark --- # 4-digit customizable combo lock Weather-resistant shutter door Holds up to 5 standard keys Master Lock Set Your Own Combination Portable Key Safe, 3-1/4 inch, Wide (Black) **Brand:** master lock **Price:** 523 kr **Availability:** ✅ In Stock ## Summary > 🔐 Secure your keys, unlock your peace of mind. ## Quick Answers - **What is this?** Master Lock Set Your Own Combination Portable Key Safe, 3-1/4 inch, Wide (Black) by master lock - **How much does it cost?** 523 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/205033131-master-lock-set-your-own-combination-portable-key-safe-3) ## Best For - master lock enthusiasts ## Why This Product - Trusted master lock brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Universal Fit:** Shackle designed to fit most ball, biscuit, and tulip door knobs for seamless installation. - • **Compact Portability:** Sleek 3-1/4 inch wide design balances ample capacity with easy portability for indoor/outdoor use. - • **Spacious & Versatile:** Accommodates up to five standard 2-inch house keys with an L-shaped interior for organized storage. - • **Personalized Security:** Set and reset thousands of unique 4-digit codes for ultimate control. - • **Durable & Weatherproof:** Robust metal body with vinyl-coated shackle and protective shutter door guards against scratches and the elements. ## Overview The Master Lock 5400D Portable Key Safe offers a durable, weather-resistant metal lock box with a customizable 4-digit combination lock. Its compact yet spacious design securely stores up to five standard house keys, fitting most door knob styles. Ideal for both indoor and outdoor use, it combines robust protection with versatile portability, making it a must-have for professionals who value security and convenience. ## Description Product Description ## Features - Large capacity key lock box enables secure storage of up to five standard (2 in.) house keys; Shackle fits most ball, biscuit, and tulip door knob styles - Set your own four-digit combination lock box; reset the combination for thousands of personalized combination code options - For indoor and outdoor use; key safe is constructed with a metal body for durability, vinyl coated shackle to prevent scratching, and shutter door to protect combination dials from weather - Exterior dimensions: 4 in. (10.2 cm) H x 3-1/4 in. (8.3 cm) W x 1-3/4 in. (4.4 cm) D; 13/32 in. (10 mm) diameter shackle with 1-13/32 in. (36 mm) L, 1-7/8 in. (48 mm) W - Capacity for 5 standard (2 in.) house keys; Interior dimensions are shaped like an ""L;"" Top section measures 0.3 in. x 1.56 in. x 2.95 in; bottom section measures 0.95 in. x 1.51 in. x 3.21 in. - Lock box combination is preset to open on 0-0-0-0. Combination reset instructions included with product. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0002YP1VC | | Additional Features | Durability | | Best Sellers Rank | #76,780 in Home Improvement ( See Top 100 in Home Improvement ) #108 in Combination Padlocks | | Brand | Master Lock | | Brand Name | Master Lock | | Colour | Black | | Control Method | App | | Controller Type | Combination control | | Country of Publication | China | | Customer Reviews | 4.7 out of 5 stars 24,001 Reviews | | Global Trade Identification Number | 00071649214516 | | Included Components | none | | Item Dimensions | 9.2 x 5.2 x 1.9 Centimeters | | Item Type Name | Set Your Own Combination Portable Lock Box | | Item Weight | 1 Pounds | | Item dimensions L x W x H | 9.2 x 5.2 x 1.9 Centimeters | | Lock Type | Key | | Manufacturer | Master Lock | | Manufacturer Part Number | 5400EC | | Manufacturer Warranty Description | Limited Lifetime Warranty | | Material | Metal | | Material Type | Metal | | Model Name | 5400D | | Model Number | 5400D | | Number of Pieces | 5 | | Product Finish Type | Painted | | Shape | Rectangular | | Special Feature | Durability | | Style | Portable | | Style Name | Portable | | UPC | 071649214516 | | Unit Count | 1 Count | ## Product Details - **Brand:** Master Lock - **Special Feature:** Durability - **Lock Type:** Key - **Item dimensions L x W x H:** 38 x 83 x 159 Millimeters - **Material:** Metal ## Images ![Master Lock Set Your Own Combination Portable Key Safe, 3-1/4 inch, Wide (Black) - Image 1](https://m.media-amazon.com/images/I/71J3n5HFhRL.jpg) ![Master Lock Set Your Own Combination Portable Key Safe, 3-1/4 inch, Wide (Black) - Image 2](https://m.media-amazon.com/images/I/81wNDnkSxOL.jpg) ![Master Lock Set Your Own Combination Portable Key Safe, 3-1/4 inch, Wide (Black) - Image 3](https://m.media-amazon.com/images/I/81RW5eDC2BL.jpg) ![Master Lock Set Your Own Combination Portable Key Safe, 3-1/4 inch, Wide (Black) - Image 4](https://m.media-amazon.com/images/I/81ScfcBg6gL.jpg) ![Master Lock Set Your Own Combination Portable Key Safe, 3-1/4 inch, Wide (Black) - Image 5](https://m.media-amazon.com/images/I/61B4MxV5TzL.jpg) ## Questions & Answers **Q: I like the how-to video for setting the combination. How do I open the U-lock hasp to secure it to the door, hose bib, etc?** A: Simply rotate the combination given when you PURCHASED the lock......pull....and it opens. Also, your own combination number is easy to set with knob inside of unit. **Q: My house key is 2.5 inches long X 1 inch wide and shaped like a car key. Would my house key fit in this product?** A: The box is 3" x 2 1/2" x 1 1/2" deep, plus some additional space at the top. You should be able to fit the key in. **Q: Can the code be changed?** A: Yes, easily. When you open the keybox you slide a lever over and then change the combination to anything you want, then slide the lever back and you are done. So you can use the keybox at different properties and never have the same code. **Q: How does this work? Want to use it when I leave an elderly relative home in case fall alert is triggered.** A: It is a sturdy combination lock which you attach to the outer door handle. Give the customizable combination to your fall alert company, local emergency personnel, and other trusted persons. It works great ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by N***A on 22 December 2025* ### ⭐⭐⭐⭐⭐ Review *by R***A on 24 March 2025* ### ⭐⭐⭐⭐⭐ Review *by V***. on 19 November 2017* ## Frequently Bought Together - Master Lock Key Lock Box, Outdoor Lock Box for House Keys, Key Safe with Combination Lock, 5 Key Capacity, 5400EC, Black - Lock Box Buddy - Secure Lock Box Attachment for Lever Handles - Realtors, Vacation Rentals and Real Estate Agent Supplies - Realtor Supplies for Key Lock Box for Keys with Code (1 Pack) - Puroma Key Lock Box, Portable Combination Lockbox Wall-Mounted Key Storage Box for House Keys, Resettable Code Safe Security Lock Box for Home, Office, Apartment Spare Key Storage (1 Pack, Gray) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.dk/products/205033131-master-lock-set-your-own-combination-portable-key-safe-3](https://www.desertcart.dk/products/205033131-master-lock-set-your-own-combination-portable-key-safe-3) --- *Product available on Desertcart Denmark* *Store origin: DK* *Last updated: 2026-05-15*