... (% of reading + Count)ETX-1812ETX-201230V0V~31V0.001V0.05+20.02+2-10°C~18°C,+28°C~55 ... 150°C0.70.40.40.40.25 0.25 As for exciting current during measurement, please refer to resistance ... measurement function. As for allowable external exciting current during output, please refer ... 1812,RTD Calibrator,Handheld Calibrator,Calibrator RTD,0.05% Accuracy