| T O P I C R E V I E W |
| BuzzKiller |
Posted - 10/11/2013 : 14:01:03
I just got my GMC-300E and I would like to know what I can use to check if it's working right. Any thing will help Thanks
BuzzKiller |
| 3 L A T E S T R E P L I E S (Newest First) |
| seb |
Posted - 10/19/2013 : 09:04:36
Common safe sources are vaselibe glass, fiestaware. They are easily found on eBay, at cheap price. I you do long measurments with software, Lo-Salt (potassium chloride) is also a good source and can be found in every supermarket :) |
| BuzzKiller |
Posted - 10/11/2013 : 18:39:38
Thanks for your info. I'm getting a reading of about 20 CPM / 0.012mR/H...whatever that last measurement is. That is with it setting on my coffee table in the family room. Thanks again for the post.... |
| maverick06 |
Posted - 10/11/2013 : 16:12:35
something radioactive!
background is about 0.1 usv to 0.2 usually.
smoke detectors might make it go up a tiny bit.
take it on an airplane and its way high (turn off the alarm)
xray machines
thermonuclear war |
