Bothstar Keypad Door Knobs: Which Keyless Entry Lock Fits Your Home?

The BOTHSTAR Keypad Door Knob with Key,Keyless, designated as model YJ20, is an electronic door knob designed for standard entryways, home offices, garage side entries, and private bedrooms. It pairs a backlit keypad on the exterior with a standard turn knob on the interior, allowing free egress while securing the door against unauthorized outside access. Built around a solid lock cylinder and a heavy-duty metal housing, this bothstar keypad door knob with key provides a dependable barrier that replaces standard doorknobs without requiring modifications to the door frame. It is engineered with an IP65 weather-resistance rating, shielding the internal circuitry from windblown rain and dust when mounted on exterior perimeter doors.

Programming the lock is straightforward, accommodating one master code alongside up to 50 individual user codes that range from 4 to 15 digits in length. A built-in password disguise feature allows users to enter random digits before or after the real passcode, preventing curious bystanders from memorizing the pin sequence. For everyday family life, practical convenience features include a silent mode to silence button presses during late hours, a visitor mode that keeps the latch unlocked when hosting gatherings, and an automatic locking feature that re-engages security shortly after entry. If the internal batteries run low, an integrated low-battery alarm sounds well in advance, and a front-facing Type-C USB backup port allows an external power bank to temporarily awaken the lock if physical keys are unavailable.

This bothstar yj20 model suits homeowners looking for a straightforward, keyless entry door lock that streamlines daily family traffic without demanding technical configuration. It fits standard door thicknesses between 1-3/8 inches and 2-1/2 inches, utilizing an adjustable latch that slides between 2-3/8 inches and 2-3/4 inches to fit common backsets. While ideal for individual entryways, homeowners seeking uniform locks across several interior doors may prefer the multi-pack version, while outdoor fence gates require the bi-directional security found on the brand’s dual-sided variants.

The BOTHSTAR Keypad Door Knob with Key,Keyless, bearing model number YJ22-BK, solves a critical security vulnerability found on fence gates, swimming pool barriers, and community enclosures: the need to control both entry and exit. Traditional knobs allow anyone to reach over a fence or through bars to turn the inside handle. This double sided keypad door knob integrates backlit numerical keypads and physical key cylinders on both the interior and exterior handles. Crafted from high-quality zinc alloy with an electroplated finish, the unit holds an IPX6 waterproof rating and operates in extreme temperatures ranging from -22 degrees Fahrenheit to 176 degrees Fahrenheit, ensuring reliable all-weather endurance across harsh seasonal shifts.

Versatility is the central strength of the bothstar yj22-bk. It stores up to 50 access codes per keypad and features an intelligent code synchronization switch. When synchronization is switched on, changing a pin code on one side automatically updates the matching pin on the opposite side, eliminating repetitive administrative steps. The lock operates on four AAA batteries with low power consumption, backed by anti-prying protection, an anti-peeping code shield, and a low-battery indicator. Property owners can set the lock to bi-directional or uni-directional control, schedule auto-locking delays spanning from 2 seconds to 12 hours, or deactivate automatic locking altogether during busy community gatherings or warehouse operations.

This heavy-duty lock suits property owners managing outdoor fences, garden gates, courtyard entries, pool enclosures, and shared commercial storage where uncontrolled egress presents a liability. Homeowners who have researched a versatile hornbill smart lock for primary exterior doors will appreciate how the YJ22-BK addresses specialized perimeter security. It accommodates doors and gates measuring 1-3/8 inches to 2-3/4 inches in thickness. However, if your household prefers biometric fingerprint authentication alongside pin numbers, the upgraded YJ42 model provides that additional capability.

Best for: Multi-door residential setups needing identical keys

Pros

• Three locks sharing identical backup keys
• Stores 50 user passcodes per knob
• Simple installation using only a screwdriver

Cons

• Not designed for two-way perimeter gates

Securing multiple entryways across a large home or small business often leads to a disorganized bundle of different physical keys. The BOTHSTAR 3 Pack Black Key Alike solves this frustration by packaging three complete YJ20 keyless electronic door knobs keyed to identical physical keys. Each unit in the package features the same durable metal construction, solid lock cylinder, and IP65 weather resistance that characterize the standalone YJ20 model. Installing this package allows families to outfit front entries, back utility doors, and garage access points with matching aesthetic hardware while carrying a single physical emergency backup key on their keychain.

Each individual lock within the bundle operates autonomously with its own keypad programming, holding one master code and up to 50 user codes that can span from 1 to 15 digits. Families can program the same master code across all three locks for effortless household access, while assigning specialized codes for house sitters or service contractors on specific doors. Every lock in this bothstar keypad door knob comparison bundle includes a backlit keypad, a visitor mode for continuous passage during family parties, a silent operation mode, an automatic locking mechanism, and password disguise protection. If power drops, each knob provides low-battery warnings and includes a Type-C USB emergency backup terminal.

This three-piece kit is the ultimate solution for property owners renovating several entry points simultaneously, rental property managers standardizing guest suite hardware, or large families coordinating garage, basement, and side doors. When comparing home security updates against smart fixtures like a philips door lock, having three mechanically matched, key-alike units creates seamless convenience without ongoing app maintenance. However, because these knobs feature single-sided access control, perimeter gates that require authorization from both sides should use the YJ22-BK or YJ42 instead.

Best for: High-security doors requiring biometrics and codes

Pros

• Dual-sided 0.25-second biometric fingerprint scanner
• Dynamic temporary codes generated over internet
• Accommodates extra-thick doors up to 3-7/8 inches

Cons

• More complex setup than basic keypads

The BOTHSTAR Double Sided Keyless Door Knob, designated as model YJ42, represents Bothstar’s most feature-rich dual-sided access system. Like the YJ22-BK, it features dual physical lock cylinders and dual digital access points, but elevates security by adding high-speed biometric sensors to both the inner and outer handles. Each fingerprint reader identifies authorized prints in 0.25 seconds, complemented by clear voice navigation prompts that guide users through programming and everyday operation. Made from electroplated zinc alloy with robust anti-prying technology, this heavy-duty hardware achieves an IPX6 waterproof rating, making it equally capable on exposed outdoor gate posts or interior commercial partitions.

Operating flexibility is extensive, offering a 4-in-1 unlocking system that includes 100 fingerprint slots, 50 user passcodes, physical backup keys, and remote dynamic code generation. By generating temporary dynamic codes over the internet without needing a continuous direct connection, property owners can issue limited-use access codes with customized expiration dates or usage limits for guests, delivery workers, or maintenance staff. Both sides of the knob can be configured independently for manual locking, unlocked passage, or automatic locking with delay windows ranging from 2 seconds to 12 hours. The unit also incorporates a silent mode to mute audible beeps, voice prompts for low-battery status, and an external 5V USB-C emergency port.

This bothstar yj42 model is designed for busy households, short-term rental hosts, office suites, and security-minded homeowners asking which bothstar keypad door knob to buy for high-traffic perimeter control. Shoppers exploring advanced automated ecosystems such as aqara smart door locks will appreciate that the YJ42 balances digital convenience with independent, standalone mechanical reliability. It boasts the widest door compatibility in the lineup, fitting metal and wooden doors ranging from 1-1/4 inches up to 3-7/8 inches thick, with latch bolt adjustments of 2-3/8 inches and 2-3/4 inches.