This is a digital thermostat. It can also control the lights. I rarely used it, so the original suction cups were in good condition, but I'm including stronger ones than the originals (see photos). There are no instructions or box, but I've included explanations of the switches in the photo section. You should be able to find information online if you search. I prefer the illuminated digital type like this one over the LCD type, so I bought several new ones about seven years ago, intending to use them for a long time. However, since I controlled the room temperature with air conditioning, I hardly ever used them. Please refrain from purchasing if you are concerned about the condition. Thank you for looking.