Descriptors | Geochemical prospecting, Distant-indicating instruments, Portable, Radiation measurement, Rocks, Probes, Measuring instruments, Scintillation counters, Ionization counters, Electric power systems, Instructions for use, Analogue recording methods, Recording instruments (measurement), Electrical safety, Occupational safety, Marking, Accuracy, Environmental testing, Tropical tests, Cold-weather tests, Power cables, Handbooks, Electronic equipment and components |