Keep in mind that this price is good today only, as it is part of the Gold Box Deal of the Day. And it will expire at midnight PST tonight.   The August Smart Lock Pro allows you to turn your existing lock into a smart lock. Without needing to swap out the keys. This is actually a pretty big deal, seeing as most smart locks do force you to get new physical keys. This smart lock will connect to your phone over Bluetooth, so you do need to be in range for it to unlock automatically, with August alerts. Which can be very helpful if you are coming home with a ton of groceries, you don’t need to fumble around with your keys. Additionally, the August Smart Lock Pro does also allow you to remotely unlock the door – perhaps to let your kids in after school – and you can also give people a temporary key. So if you have someone watching your home while you are away, you can give them a key while you’re gone and not worry about getting it back once you get home. Lock and unlock your door, control, keyless access and keep track of who comes and goes, all from your phone. Alexa can also provide notifications when your battery is running low so you can proactively replace them. Set up smart reorders through dash replenishment to make sure you always have replacement batteries when you need them. Only August has DoorSense to tell you if your door is securely closed and locked.