— Products are chosen independently by our editors. Purchases made through our links may earn us a commission. Smart home gadgets like doorbells and lightbulbs are cool, but few things in your home ...

The satellite smoke alarms in this MR31 system are larger and more dated than those in X-Sense’s petite FS31 system, but the addition of voice alerts adds extra peace of mind. X-Sense’s XS0B-MR31 ...