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End-Window GM Probes

GM-35 GP-35
Modern, More Efficient Tubes for General Lab Work.

  • Extra sensitivity
  • Improved counting efficiency
These general-purpose Geiger-Muller probe assemblies offer improved counting efficiency over smaller models, allowing the use of less-active radioisotope samples. Features include a mica window ≤ .2 mg/cm2; 900V operation, ≥150V plateau; and 150μs dead time. The large window area gives good photon efficiency for detecting low activity samples, and the thin end window construction makes the assembly suitable for with α, β;, τ radiation. The stand has ten shelf positions for accurate inverse square law measurements and for working with absorber sets. Includes planchet to hold sources and samples. GM probe is removable for external surveys and demonstrations. Requires BMC cable, not included.

Delivery information: These Items are only available to US Customers.



Item # Description Unit Availability Price Quantity
470123-264 End-Window GM Probes, Replacement GM Tubes: Large, 35 mm dia.
Each Retrieving Restricted
470123-268 End-Window GM Probes, 35 mm GM Tube and Stand
Each Retrieving Restricted
restricted This product is marked as restricted and can only be purchased by approved Shipping Accounts. To apply for a shipping account number, click here. If you need further assistance, call Customer Service at 800-962-2660 or email


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