The best double-sided keyless lock depends on whether you need keypads on both sides, mechanical operation, or features such as automatic locking. The Richelock IU52 is best for buyers who want dual keypads, multiple codes, and adjustable auto-locking. The Lockey M210JBDC is better for someone seeking a mechanical push-button deadbolt. The IU62 adds USB-C power backup, while the iulock offers a keypad lock with a conventional key option. Two IU52 listings are included because both were supplied; their listed features are the same.
| Product | Best For | Notable Listed Feature |
|---|---|---|
| Richelock IU52 | Dual-sided keypad entry | Up to 50 codes per side |
| Lockey M210JBDC | Mechanical code entry | Adjustable deadbolt |
| IU62 Dual-Sided Keypad | Dual-sided access with backup power | USB-C power backup |
| Richelock IU52 alternate listing | Dual-sided keypad entry | Auto-lock and guest mode |
| iulock Keypad & Key | Keypad access with physical keys | Type-C backup and low-battery alarm |
Richelock IU52 Dual-Sided Keypad Lock
Best for: Households or property managers who need keypad access from either side of a door, gate, or fence. The product listing describes identical backlit keypads and mechanical keys on both sides, plus up to 50 custom codes per side. Code sync can mirror codes across keypads, which may simplify managing a shared entry point.
Its listed auto-lock time is adjustable from 2 seconds to 12 hours, with manual, guest, and silent modes also described. The listing calls the lock all-weather and fully waterproof. Limitation: confirm the lock’s dimensions and installation requirements for your door or gate before choosing it; the supplied features do not specify those measurements.
Lockey M210JBDC Mechanical Deadbolt
Best for: Buyers who prefer a mechanical push-button lock rather than an electronic keypad. The supplied features identify it as a keyless mechanical lock with an adjustable deadbolt and an easily programmable code. This makes it a straightforward option to compare when electronic functions are not a priority.
Limitation: The product details provided do not list dual-sided keypads, weather protection, auto-lock, or the number and length of available codes. Choose it if the mechanical format is your priority, but verify that its operation suits your specific door setup.
IU62 Dual-Sided Keypad Door Knob
Best for: Buyers who want keypad operation on both sides and a listed USB-C power backup. The IU62 description also lists mechanical keys on each side, up to 50 codes per side, code syncing, and adjustable auto-lock. Its manual, guest, and silent modes may suit households or facilities that need different access behaviors.
The listing describes it as an all-weather lock for indoor and outdoor settings, including patio and fence applications. Limitation: although the product name mentions an adjustable latch, the supplied details do not provide a latch range. Check the required door preparation and fit before purchase.
Richelock IU52 Alternate Listing
Best for: Buyers comparing another supplied listing of the Richelock IU52. Its listed functions match the other IU52 entry: dual backlit keypads, mechanical keys on both sides, up to 50 codes per side, code sync, adjustable auto-lock, and manual, guest, and silent modes.
This is not a distinct model based on the supplied product information; it is presented separately because it has a different listing URL and image. Limitation: its listed features do not establish a functional difference from the other IU52 listing, so compare the listing details carefully rather than assuming it offers additional capabilities.
iulock Keypad And Key Door Lock
Best for: Buyers seeking a keypad door lock with physical keys and listed Type-C backup power. The product description specifies up to 50 customizable codes, a backlit keypad, passage mode, silent mode, and a low-battery alarm. It also lists four AAA batteries and a stated battery life of 18 months.
The listing describes a metal construction and use on several door types, including wooden and metal doors. Limitation: the supplied information does not describe a keypad on both sides, so choose another option if dual-sided code entry is essential.
Buying Guide: How To Choose A Double-Sided Keyless Deadbolt
Do you need keypads on both sides?
Check that the product explicitly describes keypads on both sides. A keypad on one side and a key cylinder on the other is not the same as dual-sided code access. The IU52 and IU62 listings specifically describe keypads and mechanical keys on both sides. The supplied iulock features do not confirm dual-sided operation.
Should you choose mechanical or electronic access?
A mechanical push-button lock such as the Lockey M210JBDC avoids relying on the electronic functions described for keypad models. Electronic options can offer features such as multiple user codes, backlighting, silent mode, and automatic locking. Compare the features you will actually use, and verify any power requirements before buying.
Which code and locking features matter?
For shared access, compare the number of codes, code length, and whether codes can be synchronized. The IU52 and IU62 listings specify up to 50 codes per side, code syncing, and adjustable auto-lock. Confirm how guest or passage modes work if you need temporary access or want the lock to remain unlocked.
Will the lock fit your door or gate?
Before ordering, check the product’s installation instructions and measurements against the door thickness, latch, and existing preparation. Outdoor buyers should verify the specific weather guidance for the intended location. Do not assume that a product’s broad outdoor description confirms suitability for every exposure or installation.
Frequently Asked Questions
What does double-sided keyless entry mean?
It generally means users can enter a code from either side of the lock. Check the listing to confirm whether both sides have keypads, rather than a keypad on one side and a mechanical key on the other.
Is a double-sided keypad lock suitable for a gate?
Some listed models are described for gates and fences. Confirm the product’s fit, installation requirements, and weather guidance for your specific gate before buying.
Why choose a mechanical keyless deadbolt?
A mechanical model uses push-button code entry and does not rely on the electronic keypad features described for digital locks. Compare its code programming and deadbolt adjustment details with your needs.
What is code syncing?
Code syncing lets a user program one keypad and mirror codes to the other keypad, according to the IU52 and IU62 product descriptions. This can simplify management when both sides need matching access codes.
Do all products here provide a backup key?
No. The supplied details explicitly describe mechanical keys for the IU52, IU62, and iulock. The Lockey listing describes a mechanical push-button lock, but does not provide backup-key details.