The classic British-Made portable and bench-top Geiger Counter, justly famed for its large and easy to read meter, rugged construction and simple controls.


Popular in industry, education, schools, colleges and with experimenters, collectors and hobbyists. It’s tough and reliable with useful features like a built-in speaker, user settable alarm and detachable probe. The large, easy to read, front panel meter has a logarithmic scale, reading from 0 to 2000 counts per second.


This model is fitted with a Type E Probe, using a mica-windowed LND 7312 pancake tube, sensitive to alpha, beta and gamma radiation. It is fully portable, powered by 6 AA cells; for bench use it requires an external 12-18 volt DC supply. This unit has been pre-owned but it is in full working order and in very good overall condition. It shows only few signs of light use with very minor scuff marks on the case. Instruction manual not included.


Price includes next available working day shipping to UK mainland addresses.

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Mini Instruments Mini Monitor 900 with Type E GM Probe

  • Product Code: Mini Monitor 900
  • Availability: In Stock
  • £345.00