Surface Contamination Meter

Model Number:


The RDS-80 Surface Contamination Meter is a versatile contamination detector which has been designed for a wide range of applications in different fields of radiation protection in nuclear industry, rescue and other operations, involving a possibility for abnormal contamination levels.

The Digital, Hand Held Pulse Rate Meter is suitable for personnel who need to locate and detect contaminated surfaces/ objects during their work.

The functions comprise contamination measurements with alarm functions and automatic conversion to surface activity value and additionally surface contamination measurement with a possibility to store the histogram events in the meter´s internal memory.


  • Radiation Detected: Alpha >2 MeV, beta Emax >100 keV, gamma and x-rays from 5 keV to 3 MeV
  • Detector: End window GM tube, 1.5-2 mg/cm2
  • MICA Window: Active surface area 15.2 cm2
  • Measurement Range: Surface contamination 1 to 100 000 cps or 0.01 to 1 000 000 Bq/cm2
  • Alarm levels: Freely adjustable alarm levels for contamination level
  • Cps linearity: ±15% ±1 digit over the range. The Bq/cm2 display is calculated from cps values using isotope dependent coefficients
  • Display: Either cps or Bq/cm2
  • Surface Activity: (Bq/cm2) display configurable for different isotopes
  • Cps Rate: Follow-up by audible signal with frequency proportional to activity
  • Visual and Audible Alarm: User settable for surface activity
  • Histogram Capability: Up to 480 points with user settable logging interval
  • Backlit Display: Six large digits
  • Built-in Self-diagnostics Function
  • Gamma Background: Reduction for Bq/cm2 measurements
  • Built-in Infrared port (IrDA)
  • Dimensions: 3" x 5" x 2.25"
  • Weight: .8lb with batteries
  • Case: Rugged plastic case
  • GM Tube: 1.74" dia (4.4 cm)
  • Power Supply: 2 alkaline batteries IEC LR6/AA size (recommended)
  • Battery Life Time: At least 2000 hours at normal background with alkaline cells (more than 1 year under normal operation)
  • Battery Alarm: Two-step alarm for low battery voltage
  • Wide measurement range: up to 100 000 cps or 1 000 000 Bq/cm2
  • Standard surface contamination measurements in cps or Bq/cm2
  • Contamination measurements with histogram function
  • Visual and audible alarms
  • Handy and easy-to-use design