Bristol Bleeper gamma radiation monitor made by Radiation Components Ltd
1980
Gamma radiation monitor type 1030C
Radiation monitor unit type 1021B (serial no. 1528)
Radiation monitor ratemeter
Radiation Monitor type 1043C
1945-1955
Radiation detector
Radiation monitor made by Mini Instruments
1960-1970
monitor
Radiation monitor type 255 by Airmec Ltd.
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
radiation monitor
Radiation monitor type TR56 in canvas case
Transistorised waterproof radiation monitor
1955-1965
Demonstration radiation monitor type 1187A
1955-1970