Since I last talked about data acquisition and data logging via the PC's USB port, there have been a number of interesting product developments. Of course, they are too numerous to list in this report but here are some of my favourites, just to give you a taste of the possibilities. Lascar Electronics (www.lascarelectronics.com) has added the EL-USB-3 to its popular EL-USB range of stand alone data loggers - and at a one-off price of £39 it has to be a bargain. The unit has a measurement range of 0-30V, which covers the outputs of a variety of sensor types. You just connect it to the USB port, configure the sampling rate, set the alarms, etc, remove it from the PC and connect to the measured voltage via integral screw terminals. Up to 32,000 readings can be stored and these can be downloaded on re-connection to the PC.
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