RTCA Passive Charcoal Radon Gas Test Kits. These are used to test for radon gas in the air. I used them to make duplicate tests while using a continuous radon monitor (CRM). Duplicate tests are required every ten radon tests when using a CRM device. I have (3) sets of 2 canisters each.
Test Kit includes PREPAID ADDRESS LABEL and shipping carton for quick return to RTCA Corporation for analysis. They email results to you.
Original Cost: $40 each/set (3) sets = $120
Asking $50 delivered to you