The Allen-Bradley 1794-IJ2 is a Flex I/O module that is a frequency input module. It is part of the 1794 Flex I/O system from Rockwell Automation. The 1794-IJ2 is a 2-channel, 24VDC input module that can be used to measure the frequency of a signal. It has a resolution of 0.1 Hz and an accuracy of ±0.1%.

The 1794-IJ2 is commonly used in industrial applications to measure the speed of rotating machinery, such as motors and fans. It can also be used to measure the flow rate of liquids or gases.

Here are some of the features of the Allen-Bradley 1794-IJ2:

• Two channels for measuring frequency
• 24VDC input
• Resolution of 0.1 Hz
• Accuracy of ±0.1%
• LED indicators for channel status
• Removable terminal block for easy wiring

The Allen-Bradley 1794-IJ2 is a reliable and versatile frequency input module that can be used in a variety of industrial applications. It is a good choice for applications where high accuracy and resolution are required.

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