The RadStar GM 1-2 is a one-of-a-kind diagnostic aid designed specifically for the needs of radon mitigation professionals. The radon grab sampler feature is the perfect diagnostic tool to assist you in finding radon sources. The micro manometer measures pressure field extension. The GM 1-2 comes in it's own sturdy, foam-lined carrying case.


1 - Radon Grab Sampler

  • Performs a 6-minute radon grab sample
  • Displays real-time alpha particle counts
  • Readings can be in pCi/L or Bq/m3
  • Approximately 5-hour battery life

2 - Micro Manometer

  • Time Average option adjusts readings for high wind or other environmental conditions
  • Readings can be in "WC or Pascals
  • Approximately 5-day battery life if only being used as a micro manometer


Radon Mode: Range: Manometer Mode (2 Ranges): User Selectable Options: Power: Indicators: Rotary Switch: Communication Port: Pushbuttons: Operating Range:
6-minute Grab Sampler, Brushed DC Sampling Pump rated for 500 hours 0 to 999 picoCuries per liter (pCi/L) or 0 to 37,000 Bequerels per cubic meter (Bq/m3) 0 to .250 inches WC or 0 to 62 Pascals 0 to 8.00 inches WC or 0 to 2000 Pa Units, Beep, Time Average 120VAC 60Hz Transformer, rechargeable NiCad battery 2 X 16 LCD Display, Green AC Power LED 2 Position, [Grab Sample] [Manometer] RS-232 port, for use by manufacturer only Momentary [Enter] [Next/Zero] [Reset] Temperature 55oF to 85oF Humidity 0 to 80‰, non-condensing