Get a simple Panasonic like this one.
http://www.amazon.com/Panasonic-SR-3NA-Automatic-Uncooked-Cooker/dp/B0001ZPOLE/ref=sr_1_24?m=ATVPDKIKX0DER&s=kitchen&ie=UTF8&qid=1413992330&sr=1-24
It's cheap and reliable. As long you keep the pot insert part dry when you start cooking, it will last for a decade or more. If the pot's bottom is wet when it cooks, it will die fairly quickly.