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Safety Siren Pro Series 2 Radon Gas Detector (pro2)

Model #: pro2

Condition: New

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- No wiring or batteries needed; uses typical 110v household current.

Our electronic radon detector/monitor is a proven performer being in service since 1996. Used by inspectors, consultants and homeowners to monitor the radon gas levels in schools, offices and residences. It is a solid state continuous radon monitor which utilizes patented technology. At the heart of the device is a measurement circuit and pulse processing software which records alpha events on a photovoltaic sensor. Radon daughters create a spark when they come in contact with the potential across the collection dome and the photovoltaic sensor counts these pulses. The software equates pulse volume into pCi/L (Pico Curies per Liter) and then displays the information on the LED display. Since there is no offal from a pulse event, this measurement device requires no periodic calibration.


  • Results will display in approx 48 hrs on a numeric digital LED display (range 0 - 999)
  • Shows the level of radon gas in pCi/L on a short-term or long-term basis
  • 2 modes of measurement - long & short term
  • Alarm sounds if the long-term average reaches 4 pCi/L or greater (can be silenced)
  • Samples air continuously; display updated every hour.
  • Self-test every 24 hours with an error code displayed if failure.
  • 10' power cord supplied
  • Menu button controls 4 functions. Re-set unit and use in different locations.
  • 10 year sensor and a 1 Year warranty!

Power Source Input

120v AC / 60Hz at 9 Watts

Power Source Output

18v DC / 200mA


Ionization Chamber

Sensor Voltage


Full Scale Reading

999 pCi/L


Less than whole numbers round down (3.9 = 3 displayed)

Operating Environment

0°C (32°F) to 70°C (158°F)

Storage Environment

-20°C (-4°F) to 85°C (185°F)

Audible Alarm

85dB at 10cm. Beeps every hour if long-term readings are 4 pCi/L or greater.

Averaging Frequency

Levels will be updated on the display every hour.


Average over the past 7 days.

Long- Term

Average from the time of last reset (5 year max) resets after 5 years.


+/- 12% pCi/L (click her to see accuracy report in PDF format)


4.7" x 3.1" x 2.1"

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