Fluke CNX 3000 Wireless HVAC System True-RMS AC and DC voltage measurements to 1000V True-RMS AC and DC current with 0.01 mA resolution Temperature measurements from -200 C to 1372 C 0.5% accuracy True-RMA AC current measurements to 400 A True-RMS AC and DC voltage measurements to 1000V Temperature measurements from -200 C to 1372 C True-RMA AC current measurements to 400 A Memory recording up to 65,000 readings True-RMS AC and DC current with 0.01 mA resolution