Screaming Meanie Alarm TZ-220- Green
The Screaming Meanie 220- Green- gives more options to suit your particular needs. And in extreme cases you may need the 220's 120 dB alarm to wake up. It's easy read in the dark because of the backlit display. Built in battery tester gives you more assurance that your alarm will go off and you will wake up. The 220 has a Countdown Timer function. You just enter the number of hours and minutes you want to sleep and you're all set.