The Extech MM750W True-RMS Wireless Datalogging CAT IV Multimeter, 1000V AC/DC, 10A, Type K Thermometer is a fully loaded rugged Wireless Datalogging Multimeter with 14 functions, includes non-contact AC Voltage detection and Type K Temperature measurement. Using the wireless feature, Bluetooth Datalogging Module, and the free ExView® W-Series App, readings can be transmitted in real-time to smart devices. This model can store over 15K readings for wireless transfer to generate a report/data analysis, add notes and readings to photos taken from a smart device camera, and use a smart device as a second display for easy viewing or sharing.