The DM501A Multimeter Module measures DC voltage from 200 mA to 1000 V in 5 ranges. True RMS AC voltage ranges from 200 mV to 500 V. Resistance from 200-ohms to 20 Mohms in 6 ranges. DC and True RMS AC current 200A to 2000 mA in 5 ranges. Temperature -62C to +240C.