The EX540 wireless datalogging multimeter transmits real-time data for remote diagnostics, trending, or analysis. The multimeter functions as a full-function DMM with true-rms 0.06% accuracy and CAT IV protection, according to the company. Features include an easy-to-read 5-digit triple display, drop- and water-proof design, double molded test leads, magnetic hanging strap, Type K probe, remote receiver with USB cable, PC software, carrying case, and 9V battery. For more information:www.extech.com/instruments/product.asp?catid=48&prodid=530www.extech.com/instruments/resources/datasheets/EX540_EX542data.pdfwww.extech.com/instruments/resources/manuals/EX540_UM.pdf