You can find it listed on ebay.
Professionally used, well cared for, and fully functional Sun Nuclear 1027 professional continuous radon monitor. Date of manufacturing 08/2009. I am original owner. Has been used professionally as part of home inspection business only. Has about 115 tests total run time. Last calibrated in 2012. Includes monitor, case, adapter, security key, software disk, all paperwork, and serial to USB adapter cable. Power adapter cable has been repaired. All items working and in excellent condition.