The FZ94 Pro-Lab roaster is a lovely tool to use, it is electric but you have total control over the roast process. Embedded drum speed control, separate air flow control.
Plus 3 individual temperature probes plus PID controllers.
Roasting capacity is from 100g to 2,4 kgs.
USB connector for roasting with software. Not included, but facility available.
Single owner, selling to upgrade to bigger capacity. English/french spoken, roaster available end of July 2019.
Started roasting on FZ94 in August 2015.