particle distinction radiation detector with warranty

...Radiation Detector Automatic Particle Distinction Alpha Beta Surface Activity Measuring Instrument Introduction FJ39-2180 α,β Measuring instrument is suitable for the low levels α,β Radiation surface contamination detection.The instrument adopt double flash detector,has the high detection efficiency; The same probe can measure at the same time α,β,γ,And automatically distinguish among α,β,γ, and particles and radiation...