Use which data acquisition system ?

Hi, I start an experiment to take voltage readings of 6-8 samples. Just considering which data acquisition system to use? I am right now thinking about:

1) DI-148U

8-channel, 10-bit starter kit with =B110 volt input range. USB interface.

Using WinDaq/Lite recording software, WinDaq Waveform Browser



2) miniLAB 1008 - 8 Channel Daq Device

8 Single-Ended or 4 Differential Analog Inputs

12-Bit (Differential) / 11-Bit (Single-Ended) Resolution Two 10-Bit Analog Outputs 28 Bi-Directional Digital I/O Lines (24 through standard 37-pin connector; 4 through screw terminals) One 32-Bit External Event Counter

Using InstaCal and TracerDAQ Software



3) USB-based 8 Channel Data Acquisition Device -- USB-1208LS

4 differential/8 single-ended analog inputs

12-bit Differential / 11-bit Single-Ended Resolution Up to 50 kilosample/second sample rate 2 12-bit analog outputs 16 bits of DIO

Also using InstaCal and TracerDAQ Software

I 've never used InstaCal and TracerDAQ Software before, can it work well with the miniLAB 1008 and USB-1208LS ???

Can anybody just give me some suggestions ? I am really new to this data acquisition device. Or can give me any better choice ??

Thanks a lot

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