Current Calibrator Source Current 0 to 24mA DC Current Measurement Range 0 to 50mA DC Current Accuracy +/-(0.01 Percent +1 Digit) Loop Supply Voltage 24V DC Max Loop Current 24mA DC Display Multiline LCD Powered By (6) AA Batteries or 100 to 240V Universal AC Adapter Includes 100 to 240V Universal AC Adapter Batteries Calibration Cable Carrying Case Manufacturers Warranty Length 1 yr