Battery Operated Universal Calibrator is manufactured by Pyrotech. Pyrotech is an ISO 9001:2000 company and involved in the manufacturing of Electronic Process Control Instruments, Panels and Sensors. The product Battery Operated Universal Calibrator is available with calibration facility for 199.99 mV, 25.00 mA, 500 Ohms, -200 to 600 degree C. The Battery Operated Universal Calibrator is suitable for instrument lab as well as field. Battery Operated Universal Calibrator has typical accuracy plus or minus 0.1 percent and 1 digit F.S.D.