Yale and August are dropping deals for Amazon Prime Day 2021 as well on four different locks that work for the front door and cabinets too.

The deals on these smart locks start today during Amazon's two-day event, and can be picked up through the online site.

The August Wi-Fi Smart Lock includes DoorSense which lets you know if the door is unlocked or ajarAugust

The August Wi-Fi Smart Lock works with existing lock and keys, for those who just can't part with the look of what they have now. This also makes it perfect for renters and those in apartments, who may not be able to change the outside of a lock, but can install the smart mechanism inside.

The lock will support keyless access, and also let people know who is coming and going from their home, via the lock, through the August app. And it includes DoorSense which lets people know if the door is unlocked or left open.

The August Wi-Fi Smart Lock was $249.99, but is now $179.99 — and $70 off. Plus every purchase will come with a free Echo Dot.

Yale is marking down its Yale Assure Lock SL with Z-Wave, which unlocks though a unique pin code on the touchscreen keypad, and works with most Z-Wave smart home systems include Samsung Smart Things and Wink.

You can pick up the Yale Assure Lock SL with Z-Wave, which was $219 and is now $153 — 30 percent off.

The Yale Assure Lock SL works with Siri, Google Assistant and Amazon AlexaYale

The Yale Assure Lock SL, which GearBrain reviewed, is a slim deadbolt, also key free, that uses a touchscreen key pack as well. You can keep track of who has entered the home, through the Yale Access or August app. And the lock will even unlock automatically if you approach with your phone.

With Siri, Google Assistant and Alexa you can check the lock status, and the lock also has Door Sense as well.

Pick up the Yale Assure Lock SL which was $169 and is now $109 — 35 percent off.

Finally, if you want to lock up things inside your home, like a cabinet, you can use the Yale Smart Cabinet Lock, which GearBrain reviewed, which is installed on the inside of cabinet — and drawers as well — and can be put in place with 3M adhesive tape or screws.

You can buy the Yale Smart Cabinet Lock, which was $80, for $56 — 30 percent off.