GC01 Geiger Counter Radiation Testing Instruments Professional Marble Radiation Ionization Personal Dose Alarm Radioactive TesterIf you need other color click ID 1996587 Features Nuclear sewage testFood testing 1 Detect x ray y ray and β Ray 2 High sensitivity and various working environments 3 Chinese and English bilingual operation interface easy to operate and use 4 Save the power down data 5 Three combined alarm modes of light vibration and sound are selected 6 Real time clock display 7 The product can preset the dose rate and cumulative dose alarm threshold Specifications Product parameters nuclear radiation Testing InstrumentsSize 120x78x27mmTset ray type Y ray x ray β radialTesting energy compensation GM tube Geiger technology tube Current dose rate 0 00 1000uSv h 10mSv h Accumulated dose equivalent 0 00uSv 500 0mSvEnergy range 48keV 1 5Mev â¤Â± 30 for 137Cs Language Chinese English arbitrary switchSensitivity 80CPM μ Sv for Co 60 Dose unit μ Sv h μ Gy h mR h cps cpm arbitrary switchingPower supply mode 1200mAhAlarm mode light vibration and soundBuilt in battery The package includes 1 Nuclear radiation Testing Instruments1 Charging cable