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The iulock IU-30 Keypad Smart Door Lock provides a practical, highly dependable keyless entry upgrade for homeowners, landlords, and office managers looking to eliminate traditional keys without paying a premium for complex wireless smart hubs.
Designed as an all-in-one electronic door knob replacement, this unit replaces standard interior or exterior door handle sets to streamline daily access control.
ASIN: B0B2MPYRKP
Model: IU-30
Lock type: Electronic Keypad Door Knob
Unlocking methods: Backlit Keypad PIN, Mechanical Backup Keys
Passcode capacity: Up to 50 user codes (1–15 digits) + 1 Master Code
Power source: 4 x AAA Alkaline Batteries (Up to 18-month battery life)
Emergency power: USB-C Backup Port
Weather rating: IP65 Waterproof & Dustproof
Door compatibility: Fits door thicknesses from 35 mm to 64 mm (1-3/8" to 2-1/2")
Finish: Matte Black
Warranty: Lifetime mechanical warranty and 1-year electronic warranty
iulock Keypad & Key Smart Door Lock (IU-30) — View at Amazon
Generous 50-code storage: Easily store up to 50 unique user passcodes, making it an ideal choice for multi-person households, offices, or short-term rentals.
Exceptional weather resistance: Carries an IP65 waterproof rating engineered to endure severe rain and extreme temperature swings.
Impressive battery efficiency: Runs up to 18 months on four AAA batteries, supported by low-battery alerts and emergency USB-C power input.
Anti-peep security protection: Allows users to enter random numbers before or after their actual passcode to disguise the PIN from onlookers.
Simple DIY retrofit: Installs quickly into standard door preparations using only a basic screwdriver without requiring trade help.
No direct app or Wi-Fi connectivity: Operates entirely as a standalone electronic lock without remote smartphone tracking or smart assistant voice control.
Lacks biometric scanner: Does not feature a fingerprint reader, relying strictly on tactile keypad digits or physical mechanical keys.
Knob handle design: Requires turning a traditional door knob, which may prove less accessible for users who prefer lever-style handles.
Zainab Talha is a technology journalist specialising in electric vehicles, EV charging infrastructure, sustainable mobility, and emerging transportation technologies. Her reporting explores the innovations, policies, and industry developments driving the global shift towards cleaner and smarter mobility.
Her coverage spans the wider EV ecosystem, including charging networks, battery technology, renewable energy integration, smart mobility solutions, and government initiatives. She follows developments across automotive manufacturers, energy companies, charging providers, and technology firms to examine how new technologies are changing the way people travel and power their vehicles.
Beyond electric mobility, Zainab covers consumer technology, artificial intelligence, clean energy, connected devices, and digital transformation. She also has expertise in smart home and security technologies, reporting on deadbolts, smart locks, access control systems, surveillance devices, and connected security solutions.
Her work examines emerging technologies such as biometric authentication, remote access, IoT connectivity, and AI-powered security, with a focus on their practical applications and impact on consumers.
Known for her research-driven and accessible approach, Zainab translates complex technological developments into clear, engaging stories. Her reporting combines technical understanding with real-world context, helping readers navigate the rapidly changing worlds of mobility, technology, sustainability, and connected living.
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Aug 09, 2026
