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LM 211S™

Off-line Gamma Liquid Monitor

Sampling liquid from a pipe, a tank or a pool. Can withstand seismic conditions. Version with a 4π 2” shielding.

Tag Features

  • Energy spectrum and temperature changes compensation
  • Available with or without display or local signaling
  • Seismically qualified
  • Available under 10 CFR 50 App.B, ASME NQA-1 and IEC61226 programs for safety related applications


The LM 211S from the RAMSYS product line has been developed to sample liquid from a pipe, a tank or a pool. A 1¼”x1” NaI scintillation detector face a liquid sampler inside a 4 π lead shielding for the gamma emitting isotope monitoring.

A radioactive source 241Am built into the NaI scintillator allows compensation of potential drift whenever temperature changes occur.

The spectrometry capability, based on a 1024-channel spectrum analysis, allows immediate and easy radio isotope identification in case of alarm.

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