As one of its daily deals, A4C offers the Nest Secure Alarm System Starter Pack for $249 with free shipping. That's a buck under last week's mention and the lowest price we've seen. (It's the best deal today by $51.) Deal ends today. Features include: Nest Guard base station with 85dB siren and motion detection up to 10 feet 2 Nest Detect door/window sensors with motion detection up to 15 feet 2 Nest Tags (with support for up to 10) 802.11n wireless & Bluetooth 4.0 remote access and security alerts via Nest mobile app