Household dosimeter "Master-1".
Dosimeters, radiometers, roentgenometers and other similar devices.The household dosimeter "Master-1" has been produced since the 1st quarter of 1990 by several enterprises of the country, in particular in Vladivostok, Minsk, Kiev and some others. It is intended for use by the population for the purpose of monitoring the radiation situation on the ground, in work and living quarters. The device measures the equivalent dose rate of gamma radiation in the range from 0.1 to 9.99 μSv / h (microSievert / hour). Photos of Maxim, from online auctions and forums.
