Ready to turn your dumb lock into a smart one? Here’s your chance. Now available for $120 at Amazon, the Eufy Smart Lock E30 is $50 off its MSRP. In order to get the discount, you’ll need to use the following code at checkout: eufyLockE30. The Eufy Smart Lock E30 will work with all the big smart home ecosystems, including Alexa, Apple Home, Google Home, and SmartThings, all thanks to Matter. In fact, the E30 is Eufy’s first product to come with Matter support, thus opening up its integrations. This versatile smart lock allows you to open the door in a variety of ways, such as by entering a cod…