Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: Freezer alarm
Review: Great unit, but the alarm is wimpy. you would never hear it on the second floor of a home if needed. I modified the two CDN units I bought to make them louder. I can now hear them anywere in our home. I may publish this Modification in MAKE magazine if there is any interest.
