Conclusion: The retail packaging is full color and very clear and understandable. Less is more in this case, no overwhelming technical specifications that most people will not read, just clear and precise descriptions. The Sentry 2 has a colorful touchscreen panel.
Pros: Single bay installation, 10w per channel, Intuitive interface, No pesky backup battery, Touchscreen, 3 wire or 2 wire fans
Cons: Plastic construction, Non existant instructions, Auto Mode is not very useful