By Andrew Liszewski
Given recent events that have gone down in the UK this unique watch from Environmental Instruments Canada Inc. seems rather appropriate. Besides the dated 1980’s-era design the watch also functions as a miniature Geiger counter alerting you when a preset level of radiation has been reached.
If you’re curious as to how the Gamma Watch actually reports the level of radiation then please peruse this paragraph of tech-talk taken from the company’s website. I’m sure it will clear everything up.
The GammaMaster reports dose rate in ?Sv/h and cumulative dose in mSv. If you expose the watch to 1 ?Sv/h for 1 hour, the cumulative dose will be 0.001 mSv. The Sievert (abbreviated Sv) is the internationally accepted unit for equivalent dose. There are 1 000 000 ?Sv and 1 000 mSv in 1 Sv. Historically, the units rem and R have been used. These can be converted to Sv as follows:
1 R ~ 1 rem = 0.01 Sv = 10 mSv = 10 000 ?Sv.
Now I understand!
At the moment the Gamma Watch is sold out but is being replaced by an upgraded model that’s not shipping yet but will be available for about $250.