The MX2001 Bluetooth low-energy- enabled water level data logger from CAS DataLoggers and Onset is designed for wireless communication with users’ mobile devices. The HOBO MX water level logger is used for monitoring changing water levels in a wide range of applications, including streams, lakes, wetlands, tidal areas and groundwater. Using Onset’s free HOBOmobile application — available on iOS devices — users can configure the logger and view/share data from its deployed location from their smartphone or tablet. 800/956-4437; www.dataloggerinc.com.