DIN 1X2 series DC current signal isolation amplifier utilize a circuit that can convert the current signal from input to isolated current or voltage signal in proportion. Inside the package contains a set of high-isolation DC-DC power and electromagnetic coupled switching circuit, which can convert the DC current signal to isolated current (I/I) or voltage signal (I/U) as output directly. Little input impedance (≤250 ohm) and higher loading capability (Iout>650 ohm,Vo≥2K ohm) enables little distortion available even after long distance transmission. To meet the requirements of 3-port 3KVAC mutual isolation among the signal input, output and auxiliary power source, the wider operating temperature range, humidity and shake harsh environment, we adopt fully SMT ceramic PCB, printed resistor techniques and the latest technology. The device is also available for signal to be interchanged among 4-20mA, 0-20mA, 0-5V, 0-10V, 1-5VDC, and the conversion of single input to double output, double input to double output just by connecting an adjustment (Gain Adj. 50K) externally. In addition, the industrial DIN rail package is available from us.