Wireless anemometer, hygrometer, and pressure probes communicate to the handheld using Bluetooth SIG, Inc. wireless technology and can all be displayed simultaneously. Each UHH2 includes a UHH2 handheld base unit, UHH-BTG wireless mobile gateway, two USB charging cables, charging block, mini-screwdriver, user manual, and headphones. Product highlights Rugged weatherproof housing withstands 1.5 meter drop test Wireless measurement of pressure, air velocity, air flow, temperature, and humidity Share logged data directly from handheld over Wi-Fi, GSM, or CDMA networks Each Unit Includes UHH-BTG wireless mobile gateway two USB charging cables charging block mini-screwdriver headphones