National Instruments PCI-6602 8-Channel Counter/Timer

National Instruments NI PCI-6602 Counter / Timer DIO Card, 8 channels

National Instruments NI PCI-6602 8-Channel High Speed Counter/Timer, 5V

National Instruments NI PCI-6602 Counter / Timer DIO Card, 8 channels

National Instruments PCI-6601 Counter/Timer DAQ Card 184479E-02

National Instruments NI CCA, PCI-6602 184479B-01 Countertimer Module

National Instruments PCI-8252 3-Port, IEEE 1394a Frame Interface Grabber Device

National Instruments DAQScope PCI-5102 2 channel 20 MSPS 8-Bit Digitizer