Projection Alarm Clock with Forecaster Even groggy, half-open eyes can register the correct time with no mistakes. You'll instantly know both indoor and outdoor temps. And be alerted to changing air pressures, often a sign of a storm on the horizon. Bright EL backlight; Dual alarms with adjustable snooze control; Atomic time and date; Monitors outdoor and indoor temperature... range is -21.8 degrees F to 122 degrees F; Adjustable projection brightness and location... maneuverable arm points where you want it; Forecaster icon predicts weather based on changing pressure conditions; Air pressure tendency arrow; Mounting hardware included; Receiver uses included AC adapter or 3 AA batteries (not included); Outdoor sensor uses 2 AA batteries (not included); Receiver: 5 5/8 x 3 7/8 x 1 3/8", 7 ozs. Sensor: 5 1/8 x 1 3/4 x 7/8", 2 ozs. Act Now! Projection Alarm Clock with Forecaster