The absence of a camera helps with privacy, as you might guess, but it also enables the sensor to work at all times of the day and through thin obstacles like shower curtains and steam. A button on the front lets you call an emergency contact whether or not there' s a fall.

The Walabot Home is available now for $249, and that might be the only real hurdle to adopting it. While that price isn't extreme by itself, complete around-the-house coverage could be expensive. Otherwise, you'll have to guess where you'd be most likely to slip and hope that you don't fall anywhere else.