Radiation monitor type 255 by Airmec Ltd.
Bristol Bleeper gamma radiation monitor made by Radiation Components Ltd
1980
monitor
Radiation monitor made by Mini Instruments
1960-1970
Gamma radiation monitor type 1030C
Radiation monitor unit type 1021B (serial no. 1528)
Radiation monitor ratemeter
Radiation Monitor type 1043C
1945-1955
Transistorised waterproof radiation monitor
1955-1965
radiation monitor
Radiation monitor type TR56 in canvas case
Alpha air monitor model ALPHA 1 by Eberline Instrument Corporation
circa 1975-1985
Radiation detector amplifier
1956-1979
Portable radiation monitor type 1320D
1960-1975
Gamma radiation monitor type 1030C
Demonstration radiation monitor type 1187A
1955-1970