Brightwin supplies various types of high precision low cost adjustable 0-20mA 4-20mA simulator or 4-20mA signal generator. These analog 4-20mA signal output modules are widely used in 2-wire or 3-wire or passive 4-20mA current signal simulation, generating, controlling. Our 4-20mA generators simulators can simulate 4-20mA sensors , 4-20mA transmitter, 4-20mA converters signal output, and 4-20mA current source simulation output for industrial analog dc current signal testing or calibration. We also provide 4-20ma current loop simulator tester for user to do industrial control signal testing. The 4-20ma current loop generator simulator connects to 4-20mA loop process control system to do adjustment and 4-20mA loop calibration, etc. Brightwin specailly designs current signal generators with various types of external shell or display mode for users to do integration or use in analog current signal controlling systems.