The alarm value can be selected from 0.5, 1.0, 2.0, 2.5, 5.0, 10.0, 50.0usv/h. The marble radioactive alarm counter is simple and easy to operate. 【Multifunctional Geiger Counter】 Our the geiger counter has other various setting, such as alarm setting, system clock setting and unit setting & language change,you can operate in English (default) or Chinese.
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