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| Checking Calibration - Safety Siren Pro 3 Radon Detectors? https://www.netc.com:443/bb/viewtopic.php?f=23&t=27  | 
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| Author: | KingCobra [ Wed Jan 30, 2013 4:38 pm ] | 
| Post subject: | Checking Calibration - Safety Siren Pro 3 Radon Detectors? | 
Safety Siren Pro Series 3 Digital Radon Gas Detector How far off were yours from each other when tested side-by-side? If you can believe it, I never tested both my radon detectors side-by-side before. The other day I took the one from upstairs and put it downstairs on the other side of the basement from the other. One reads 3.0 and the other reads 4.5 so not I moved them side-by-side to see what I get as a reading.  | 
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| Author: | hey [ Wed Jan 30, 2013 5:10 pm ] | 
| Post subject: | Re: How Far Off Are Your Two Radon Detectors? | 
I just moved them together today. I should reset them and wait 2 days.  | 
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| Author: | KingCobra [ Thu Jan 31, 2013 2:12 am ] | 
| Post subject: | Re: How Far Off Are Your Two Radon Detectors? | 
I didn't reset mine, I will just have to leave them there long enough to allow for a complete change.  | 
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| Author: | hey [ Thu Jan 31, 2013 10:43 am ] | 
| Post subject: | Re: How Far Off Are Your Two Radon Detectors? | 
I did not reset the two unit and the reading were dropping over the last week but they were off 6.6 and 18.7  | 
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| Author: | KingCobra [ Thu Jan 31, 2013 3:41 pm ] | 
| Post subject: | Re: How Far Off Are Your Two Radon Detectors? | 
I just checked mine and they say 3.2 & 4.5 so I will keep watching them over the next few days to see any change.  | 
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| Author: | KingCobra [ Tue Feb 05, 2013 2:49 pm ] | 
| Post subject: | Re: How Far Off Are Your Two Radon Detectors? | 
I just checked my two radon detectors again and now the one is still 4.5 pCi/L (as expected) and the other one that I moved from upstairs to the basement (still sitting right next to the other one in the basement) now reads 4.4 pCi/L so I am impressed! I will give it a few more days to see if it will reach the 4.5 level. I have no way to prove 100% that the true level of radon in my basement is 4.5 pCi/L but I can safely say these two radon detectors are calibrated the same.  | 
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| Author: | KingCobra [ Wed Feb 06, 2013 12:03 pm ] | ||
| Post subject: | Re: How Far Off Are Your Two Radon Detectors? | ||
The test results are in from checking to see how close my two radon detectors are calibrated. 
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| Author: | hey [ Wed Feb 06, 2013 3:58 pm ] | 
| Post subject: | Re: Checking Calibration - Safety Siren Pro 3 Radon Detector | 
lucky, mine are .3 difference.  | 
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