Select from Onset’s wide range of accurate, fast and reliable time-of-use data loggers to streamline energy audits and light and equipment use analysis. Onset’s time-of-use loggers feature an easy to read LCD display, auto calibration and signal strength indicator, large memory, and flexible mounting options. Choose from on/off data loggers, light on/off data loggers, event data loggers, occupancy data loggers and more to identify energy use patterns, optimize building performance, and reduce costs.