I just found this on ebay: watch w/ build in radiation detector.

http://cgi.ebay.com/GammaMaster-Watch-Pe...1QQcmdZViewItem

Honestly: yes I did think about it. It is something that bothers me a great deal whenever we do a suspicious package on the train job. It bothers me becasue I can't see it and for real we are kind of helpless against the exposure. And now on the subject of radiation detectors:

Many companies are trying to cash in on the fear of general public. There are key chains, watches and clip on detectors that you can buy. Are they a real deal? Some of them are but they are not really that sensitive. The scale basically has to settings: 1. nothing 2. you got 30 min or less

Now the real detectors are priced around $1000. Those are pagers and clip ons that richer Fire Dept and agencies have.

This is what my dept is using and I have no confidence in it since I like to test my equipment and I brought it right by an xray machine taking 3 shots. Nothing happened.
http://www.ludlums.com/product/mK8.htm

What I wanted to buy but gave up due to crazy money are either one of those two.
http://www.laurussystems.com/products/mini_rad-d%20gamma_pager.htm

or one designed for ems and first responders:
http://www.raesystems.com/products/gammarae_ii

Now personally I would buy any of the above meters for my own use on the job BUT being on city money I can't afford them. Same stuff goes for other equipment. 12 lead EKG machines for pocket PCs that run close to $2500. Sometimes I wonder who designs all that stuff and who do they target as their customers... People who can benefit from these developments can't afford them.