http://tinyurl.com/p59jqj9
NukAlert nuclear radiation detector / monitor (keychain attachable) alarmProduct Review
Click on the link for more reviews
Always "ON" 24/7, Includes long-life 10+ year battery
Detection Range: 100 mR/hr to 5,000 R/hr, Gamma and X-rays from 20 keV to above 2 MeV
2 year regular warranty, 10 year prorated warranty
Meets DoD EMP immunity standards
Made in the U.S.A.
