The HC-100 hand-held valve controller from E.H. Wachs is designed for operation and data logging using the ERV-750, TM-7 or TM-5 valve exercising machines. The controller has a 4.3-inch LCD display that can be navigated using a finger or stylus. It has a 1 GHz ARM Cortex A8 processor and 8 GB of storage. GPS equipped for locating valves, the controller can be paired with the submeter Trimble Pro 6T (79-412-01) or decimeter Trimble Pro 6H (79-412-02). Kits include controller, 12-volt DC vehicle charger, AC wall charger, USB sync cable, machine control cable, screen protector and Vitals Mobile software. 866/392-1060; www.ehwachs.com.