Amazon offers Prime members the Eton ZoneGuard+ Weather Alert Clock Radio System with Alert Modules, model no. NZG200B, for $31.03 with free shipping. (Non-members can spend $35 or more to qualify for free shipping; otherwise, it adds $7.59.) That's $2 below our mention from five days ago and the lowest total price we've seen. (It's a current low by $49.) It features S.A.M.E (Specific Area Message Encoding) technology to receive alerts, AM/FM/NOAA digital radio, six station presets, alarm clock, a high-visibility color-coded alert bar, and it includes two wireless alert modules with sirens and a range of up to 164 feet.

Update: The price has dropped to $28.87.