We are dedicated to providing better products and experience for you. Welcome to try the updated version,IU-32 Two-Way Security Double-sided Keypad Door Lock for All-Weather Use.they're designed,crafted and tested to ensure durability. This Keyless Entry Door Knob With Two-Way Security Double-sided Keypad is a reliable and securer option for anyone seeking a stylish high-tech lock for their front or back door,entrance door. Enabling multi-functional control for secure access both in and out. This keypad door knob features keypads and cylinders on both sides,the 4 backup keys are identical, you can rekey them to your other locks, so One key for all your locks.Each side can be set with up to 50 access codes.The backlit keypad makes it easy to operate day or night. With the sync switch turned on,any changes made to the code on one side of the lock will be automatically updated on the other side as well, saving you time and hassle. Anti-peeping user code protection,by touching in up to 40 random digits before and after your correct acess code.Ideal for garden gates or fences door,and exterior or interior doors that require two-way entry control. Plus,this code door lock supports web-based dynamic passwords.You can send temporary codes to guests who require access when you're not at home or office,and you can set the validity period or the number of times that can be used for each code, and they will automatically expire when no longer needed. Suitable for garden gates,fence doors,communityentrance,swimmingpool,publicaccess,church,library,warehouse,etc,where bi-directional control safety is necessary. This combination electronic door knob with key is highly customizable,with options for automatic or manual locking and bi-directional or uni-directional control.Can be set to automatically lock the door 2s to 12hr after closing the door or be set to not lock when there's a lot of coming and going. Perfect for home entrance,commercial offices,medical facilities,departments,etc. This digital keypad door lock is designed with an IPX6 rating, making it waterproof,and can withstand temperatures from -22°F to +176°F,for All-weather use. Crafted from high-quality zinc alloy and electroplated for durability, heavy duty and 2 solid lock cylinders. this Premium Quality lock is robust and sturdy. Exquisite in detail for higher security and long-time use. This keyless entry door lock with handle fits all metal or wooden doors with thickness ranging from 1-3/8" to 2-3/4",with two 2-3/8" or 2-3/4" adjustable latches, Type-C USB charging port for emergency. Low power consumption,4 new AAA batteries available for over a year. Low battery warning, you can also turn on the silent mode if need. IUKNOB has always been responsible for every valued customer.Offers a 1-year warranty,lifetime after-sales customer service and 24/7 online technical support.