Radon Electret Kit for sale. Run three tests at once

I have the SPER-1E voltage reader. Calibration valid through May 2020 with certified reference electrets.

Six electrets with S-Chambers.

Three tamper resistant twin boxes with tamper tape and zip ties.

A nitrogen cleaning kit. I am including a tank for nitrogen. Refillable at welding shops for cheap.

Flash Drive with report software.

Digital tamper monitor which measures movement, temperature, pressure changes, etc…

Over $3,000 in equipment. I am seeking $1,500.

This item has sold.