Choosing a datalogger

[Venaman]

I already have the sensors I need those being a nitrate and calcium ISE prope and a Silicon photodiode

I am not at all familiar with dataloggers, what is a good one that I can connect these sensors up to so that I can store the voltage to be read on a PC (after the data has been stored and the sensor is no longer sensing).

Any help is appreciated,

Thanks,

Dan

[CMal]

Hello Dan,

There are several factors that need to be considered when chosing a data acquisition (DAQ) device.  What voltage range will you be measuring, how fast of a sampling rate will you need, and how many channels will you need to sample at once?  Also, what sort of bus interface would you like:  PCI, USB, etc?  The DAQ Advisor webpage is a good place to get started in chosing a device:
http://www.ni.com/dataacquisition/

Chris M.
Applications Engineer
National Instruments