been looking at one of these padlocks for my front gate. cheapest on aliexpress is ~US$30.
This Bluetooth Padlock can turn your smart device into a key. Simply download the app, pair it with the lock and you can use it. Keyless design provides flexibility as you share access with friends, family, colleagues and employees, etc, no need to worry about losing the key any more. Convenient to use.
Keyless Design
No worry of lock picking, bumping or unauthorized key duplication, protect your property.
App Control
Easy to use, can monitor the unlocking record and sharing record, compatible with iOS and Android devices.
Great Flexibility
One lock can be authorized to multiple users and a user can unlock multiple locks.
Superior Strength & Durability
Made of high-duty zinc alloy with electroplating process, anti-impact and corrasion resistant, durable for use.
Replaceable Battery
Built-in battery, it provides more than 2000 unlock times, longer battery life.
Waterproof
High waterproof grade allows outdoor application.
Wide Application
Perfectly used for doors, cabinets, bikes, backpacks, storage lockers, etc.
Specifications
Material Zinc alloy, aluminium alloy, steel
Connection Bluetooth
Product Weight 110g
Package Contents 1 x Bluetooth Keyless Padlock
https://www.tomsguide.com/us/bluetooth-lock-hacks-defcon2016…