4 Cheaper Alternatives To Expensive Smart Home Sensors - bgr.com

Smart home sensors can be expensive, but you don't have to break the bank to start automating. Cheaper alternatives include sensors from IKEA and Sonoff.

Some other brands on this list have vibration sensors, too, including IKEA and Thirdreality, so you have options in this realm. But what makes Aqara's $19 sensor a top choice is the affordable price …