Title: This doesn't work
Review: This product does not work. It is accurate for about 15 minutes and then indicates an open garage door when the door remains closed. It is installed correctly. I have waited to write this review to give a fair and accurate account. After more than a week it has malfunctioned about 75% of the time. When I go to bed the garage door is closed and the green light is on as it should be. I wake up to see the red light flashing and have to go outside to see if the garage door is in fact open each time. It is a pain. I bought this product precisely to avoid having to get up at night to see if the door has been left open.
Is this product review negative?