Automatic self-testing ensures the lifter is ready for use, every time. A colour display provides critically relevant information at a glance. The unit anticipates threats and alerts the operator beforehand with clearly visible and audible warnings. The system continuously monitors the battery and prevents the lifter from attaching to loads if energy is hazardously low. Multiple alarm levels plainly identify the severity of hazards. The unit is capable of manual rotation, 360° edgewise, with locking at each 1/4 turn and manual tilt, 90° between upright and flat, with automatic latching in the upright position.