Household dosimeter `` Bella ''.

Dosimeters, radiometers, roentgenometers and other similar devices.The Bella household dosimeter has been produced since 1990 by several factories. Designed to assess the dose rate of gamma radiation and to measure the field equivalent dose rate (EDR) of gamma radiation using a digital display. It has sound and light indication of DER exceeding. Power supply - "Krona" battery.