
4-20mA Signal Generator (Current Generator)
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Prices updated: 12 Oct 2026
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About this product
A current signal generator that produces 4-20mA loop signals for testing industrial current inputs. It is used to simulate transmitter outputs and check PLCs, data loggers and process indicators.
Specifications
- Signal type
- Current loop 4-20 mA
- Application
- Loop testing and simulation
Frequently asked questions
What is a 4-20mA signal used for?
4-20mA is a standard industrial analog signal where 4mA represents the minimum and 20mA the maximum of a measured value, which is robust over long cable runs.
How do I connect it to a PLC input?
Connect the generator's output to the PLC's current analog input, observing polarity and the loop power requirements in your PLC's manual.





