If you require a stand-alone monitoring system from our product range, the solution that we offer is EnviroMon (http://www.picotech.com/enviromon.html
The EnviroMon system is configured on a host computer and may then be left to remotely log data. A 12v battery could supply the power needed and, the logger may be communicated with by radio, GSM or telephone MoDem or, downloaded to a web page.
The fastest sample rate is 1 sample/min with a maximum of 250,000 samples with 16-bit resolution. The maximum input voltage would be +/- 10 Vdc using an EL037 converter.
If you wish to monitor a.c. current, then the current monitoring (http://www.picotech.com/e_converters.html#el040
) part of EnviroMon could be utilised.
Drivers are available for LabVIEW and would have been tested with versions 4,5 and 6.1 only.
Our other products are not intended for what you have described and, you would need to do something along the lines of what I originally described to achieve that.