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Ships within 48 hours · Estimated delivery Jul 14 - Jul 19
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Description
Bluetooth 2-7/32 in. Wide Zinc Outdoor Personal Use Padlock with 2 in. ShackleThe Master Lock No. 4401DLH Bluetooth Smart Padlock features a 2 7 32 in. (56 mm) wide metal body for durability. The 11 32 in. (9 mm) dia. shackle offers 2 in. (51 mm) vertical clearance and is made of boron alloy, offering maximum resistance to cutting and sawing. The smartphone app interface offers speed, ease of use and greater control with the ability to share access, with keyless convenience. The locking mechanism features anti shim technology,
The Master Lock No. 4401DLH Bluetooth Smart Padlock features a 2-7/32 in. (56 mm) wide metal body for durability. The 11/32 in. (9 mm) dia. shackle offers 2 in. (51 mm) vertical clearance and is made of boron alloy, offering maximum resistance to cutting and sawing. The smartphone/app interface offers speed, ease of use and greater control with the ability to share access, with keyless convenience. The locking mechanism features anti-shim technology, offering maximum security. The 1 Year Limited Warranty provides peace of mind from a brand you can trust.- Use your smartphone to open your lock with the free Master Lock vault elocks app for Android and iOS. Designed for personal use, supporting up to 10 locks
- Never worry about a forgotten combination
- Share access with others - temporary or permanent
- Share 24/7 access or limit to days or nights
- Monitor access history and receive tamper alerts
- Backup access using directional code on lock keypad
- Locker mode setting allows for storage inside a locker
- Low battery notification and reminder on padlock and in app
- Comes with easy to replace CR2 battery
- Battery jump allows for temporary access if battery dies while locked
- Compact footprint fits most lockers
- Hardened boron alloy shackle for superior cut resistance
Features
| Item Weight | .779 |
| Product Weight (lb.) | .779 |
| Keys & Accessories Product Type | Padlock |
| Adjustable shackle | No |
| Coated | N |
| Color Family | Black |
| Lock material | Zinc |
| Hub Required | No hub connection available |
| Weatherproof | Yes |
| Returnable | 180-Day |
| Requires Hub? | No Hub Required |
| Locking mechanism | Ball bearing |
| Remote Access | No Remote Access |
| Power Options | Battery |
| Color | BLACK |
| Smart Home | Smart Home Enabled |
| Works With | Proprietary App |
| Material | Zinc |
| Lock Type | Bluetooth |
| Number of locks in pack | 1 |
| Shrouded shackle | No |
| Lock Product Type | Padlock |
| Smart Home Protocol | Bluetooth |
| Voice Control Hub Required | No Voice Control |
| Shackle diameter (in.) | .34 |
| Product Height (in.) | 5.3 |
| Shackle clearance (in.) | 2 |
| Product Width (in.) | 2.22 |
| Body width (in.) | 2.22 |
| Product Depth (in.) | 1.06 |
| Manufacturer Warranty | 1 Year Limited |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 568 reviews
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Product Reviews
★★★★★ 5
Great scale, great price.
Size: EK6002
3 years in, this scale was well worth the $23 cost . Still works flawlessly. I use it multiple times per day for coffee and cooking. Honestly if it had been twice that much it would have been worth it. Partially because of the price point, I don't know if I could come up with a complaint if I had to give one.
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Reviewed in the United States on March 27, 2026
★★★★★ 5
incredible scale!!
Size: EK6002
super nice scale!! i use it for my matcha and it helps me get my measurements just right!! highly recommend this scale
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Reviewed in the United States on April 28, 2026
★★★★★ 5
Great addition to our coffee station.
Size: EK6002
Love it. It's accuracy might be a little fuzzy about measuring the last tenth of a gram, probably due to rounding. But it showed a difference when a single coffee bean was added. Easy to read. The removable pad makes it easier to clean. It fits right on my little coffee station. To be honest, I didn't read the instructions. It's fairly intuitive if you know how they are supposed to work. I like it.
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Reviewed in the United States on November 26, 2025
★★★★★ 1
Broken, after 1 week of use
Size: EK6002
Sorry but, no. Stopped working after less than 1 week of use. They pre-install cheap batteries. I used it for a few days but then It wouldn’t turn on so I switched them out with fresh ones. Now the start/stop button isn’t working. Discovered during an extraction…arg!! Don’t mess with me while performing my craft! lol. Build quality is poor. Don’t over handle it, yeah, that’s how fragile it appears to be. I like that it is light weight but so light, I question if the durability and weight factor are compromising the output accuracy. Doesn’t feel reliable at all. I also question if this is waterproof, again, having everything to do with build quality. This is not my first scale but it is for coffee use so I’m on the hunt for a better one. This was cheap in price, yes. But as the old saying goes, you get what you pay for. One good thing that came out of this is, while it was working, I realized how much this was really needed for me to make exceptional and accurate espresso shots, so time to find a better one. I wanted this to work, I really did.
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Reviewed in the United States on April 3, 2026
★★★★★ 5
4.95 stars
Color: Black
TLDR: Buy it. It works well, it has impressive and useful features, it looks great, it’s thin/low-profile, and it’s a great price.
Detailed review: I’m very happy with this scale, and it has certainly upped my espresso game by leaps and bounds. I’m able to weigh my beans very precisely down to a tenth of a gram (roughly the weight of a single bean), so my dosing is on point. Also, it fits beneath the portafilter with room to spare for my cup, so I can weigh my shots and accurately measure my input/output ratio. And automatic mode is magic! When the espresso hits the cup, the timer starts running, so I can measure flow rate along with everything else! Overall, super easy to use and very necessary for the at-home barista.
One caveat: It acted weird on the 2nd or 3rd day, and I thought I was going to have to return it. The weight would slowly creep up even though I wasn’t adding any coffee. I dusted it off, made sure it was dry, set it on a more stable surface… I still don’t know what the matter was, but it stopped freaking out and it hasn’t really given me any trouble since. Also, I should mention that the automatic function doesn’t always work 100% perfectly; it works, and usually works quite well, but depending on the flow rate, you might get some drops dribbling into the cup and the timer not detect it right away. (I think the timer must be activated according to some sort of algorithm that looks for a certain increase in a certain amount of time, so a slower initial drip rate might not trigger it at first.) Also weirdly, it seems like about half of the time when the weight stops increasing (i.e., espresso stops flowing) , the timer pauses (as I think it’s supposed to do), but other times, the timer keeps running until you manually stop it. I don’t know… It’s a weird glitch, I guess, but it doesn’t really make any difference. The weight is accurate, and that’s the primary thing to keep an eye on.
So, is it perfect? No, I guess not. But, it works extremely well and functions perfectly for my purposes. In fact, it’s a lot nicer and fancier than I expected – plus, it’s more affordable and more streamlined than its obvious rival the Acacia.
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Reviewed in the United States on June 1, 2024
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