from thisCaringhome.org:
These electric stove turn-off products can increase cooking safety for those with dementia who still have good stove skills and judgment but are liable to forget occasionally. These devices come with a timer, a motion sensor, and an automatic stove shut-off. Gas stove shut off devices are in development; we currently know of only one manufacturer that offers this product but we have not reviewed it yet. Below you will find three reviews of devices for electric stoves. All three turn off the stove top and the oven, but each one works a little differently. Some features may be safer or more convenient for your needs and/or the person you care for. Here are 4 things to consider...
Full text at:
http://www.thiscaringhome.org/products/auto-stove-turn-off-devices.php