Brightwin low cost multifunction process calibrators and analog current voltage calibrators generators are all in high precision and high reliable in signal output simulation and measurement. These current voltage calibrators are designed to calibrate 4-20ma loop signal, 4-20mA,  0-5V, 0-10V,  1-5V, 0-75mV, etc current or voltage source signals for sensors,  meters and instruments testing. Brightwin multifunction process calibrator precision is upto 0.025% , 0.02%.  The process calibrators are also widely used to calibrate and measure 0-20mA, 4-20ma current, 0-5V, 0-10V, -10V to +10vdc voltage signals, PT100, PT1000, Cu500 rtd signal, type K, J, N, S, B, T thermocouple signal, Resistance signal, frequency signal, etc, from transmitters, valves, PLCs, etc. Brightwin calibrator has pocket shell type, handheld type, portable type, etc, user-friendly design and the signal calibrators generators have internal rechargeable li-battery or support dry battery, USB port power supply, etc. Our process calibrators and 4-20mA 0-10V calibrators becomes an ideal low cost high accurate essential calibration tool for process controlling applications.