The ST-Q33+ Transmitter from RIDGID allows complex locates to be finished quickly and efficiently. The transmitted frequency or power setting can be changed wirelessly from either device when the unit is connected with an SR-24 Line Locator using Bluetooth. This connectivity results in accurate locates in less time. The RIDGIDtrax utility-locating app enables the creation of visual maps of underground utilities using a mobile or tablet device. Connected with an SR-24 Line Locator, multiple lines can be traced, color-coded and named on an overhead satellite image of a job site. RIDGIDtrax is free and available for iOS and Android devices. 800/769-7743; www.ridgid.com.