Instruct: Classify the given review as either positive or negative.
Query: Daily False Alarms

I purchased four of these smoke detectors for our home based on the rating and recommendation in a popular consumer magazine. All four have since been taken out of service because of false alarms in four separate locations of the home. I tried changing the batteries and it did not help. The sensitivity of the dual-sensors was a selling point, but evidently it was too sensitive for our home. We don't smoke, burn candles or use the fireplace, and the house hasn't burned down so I'm not sure why they kept going off. Hopefully the newer SA320CN model doesn't have the same problems, and hopefully First Alert will cover these under warranty.