In general survey meters are used to measure high levels of radiation such as when you measure exposure rate or the intensity of radiation in an area.
Geiger counter survey meter.
Ludlum measurements model 3 survey meter geiger counter.
Eberline e 520 geiger counter survey meter hp 260 and hp 270 probes excellent.
Deliver on site measurement and analysis of alpha beta and gamma radiation using either a g m tube ion chamber or scintillation detector.
This article is about geiger counters and ion chamber instruments and it uses the term geiger counter as a colloquial name for any hand held radiation measuring device in civil defense however most civil defense devices were ion chamber radiological survey meters capable of measuring only high levels of radiation that would be present after a major nuclear event.
Radiation survey meters handheld devices designed to provide rapid assessment during radiological emergencies.
The geiger counter also measures exposure rate or the intensity of radiation at a location at some point in time.
However it utilizes a geiger tube rather than an ion chamber.