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GMP-25 – contamination probe

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  • Fits RDS-series and SPIR-Ace
  • Design to measure alpha/beta/gamma surface contamination
  • Cable lengths up to 15 meters

The GMP-25 contamination probe is a smart probe for RDS-series of handheld instrument, and the versions RDS-31/RDS-32 / iTx / iTxSD / samt SPIR-Ace.

Available as
GMP-25 – with fixed spiral cable 30 cm – 1,5 m.
GMP-25i – without cables (order separately, see accessories tab).

Data sheet


Stefan Mårtensson


Technical specification

Radiation detected: gamma-, beta- and alpha-rays
Energy range: gamma > 6 keV, beta > 100 keV, and alpha > 2 MeV
Detector type: GM tube 7313
Pulse rate range: 0 – 50 000 cps
Detector window active area: 15,5 cm²
Detector window thickness: 1,5 – 2 mg/cm²
Sensitivity: 2.8 cps for Sr-90/Y-90 uniform source of 0,37 Bq/cm²
Cable lenght: 2000 mm 
Temperature range: operation: -25°C to +55°C; storage: -40°C to +70°C 
Humidity: 0 – 95% relative humidity, non-condensing
Casing: durable ABS/polycarbonate
Dimensions: lenght 330 mm, width 70 mm 
Weight: 490 g
Suitable Transport Case: Peli 1470

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