The HOBO UX90 from Onset Computer Corp., Bourne, MA, is a matchbox-sized data logger with an LCD that monitors run times of motors, pumps, compressors, and other equipment. The motor on/off logger is offered in a standard memory model (UX90-004) with memory for 84,650 measurements or an expanded-memory version (UX90-004M) with memory for >346,795 measurements. You attach the device to motor housings via its built-in rare earth magnets; the LCD confirms logger operation and a signal strength indicator ensures proper logger placement. Software lets you plot and analyze equipment runtime data.