Dealextreme has cheap USB-temperature sensors (Winchiphead‘s CH 341 chip) – http://www.dealextreme.com/details.dx/sku.7003

The windows drivers and monitoring software provided aren’t that good but luckily there’s better free alternatives – http://www.n4rf.net/solutions/utac.

Linux support is a bit different. One must have a recent kernel with a proper patch to enable device readings plus a software for reading the […]