Detectos patient lift scales are self contained instruments that determine the weight of a patient suspended from a portable patient lift mechanism. (Patient lift is not included.) The indicator has a lock weight feature that stores the last reading when the unit is turned off. Its smaller size allows it to be used where standard indicators are too large and cumbersome. It only requires one 9-volt Alkaline battery to function, making powering this indicator a simple task. (Battery is not included). The automatic shut-off feature increases overall battery life by turning the indicator off when not in use. This model is able to zero out the weight of any bedding, stretcher, or lift, in order to get an accurate reading of a patient. It is able to switch between pounds and kilograms.