After-sales Service: 2 Years Warranty: 2 Years Applicaiton: Projector, Machine Output: 4-20mA, 0-20mA, 0-5V, 0-10V, 1-5V, 0-+/-5V, etc. Input: 0-75mv, 0-10V, 0-+/-10V, 0-20mA, 4-20mA, etc. Islation Mothod: Magneto-Electric