Abstract: A safety device for measuring and indicating the level of a ladder having rungs extending between a pair of elongated ladder rails, the safety device comprising a housing dimensioned to be inserted into one of the rungs of the ladder, an electronic sensor disposed in the housing, a controller disposed in the housing, which is in electronical communication with the sensor, at least one indicator, and a power supply for supplying power to the device. The electronic sensor measures the inclination of the ladder to produce a measured inclination which the controller compares to a stored predetermined level value to produce a comparison signal. The at least one indicator receives the comparison signal and indicates to the user the comparison signal.

Abstract: A method of stabilizing a ladder is provided by attaching one or more electroadhesive devices to an attachment point on the ladder and contacting the device to a surface such as a wall or the floor. The electrostatic force achieved by applying a voltage difference in the device provides decreased ladder slip angles or increased shear forces required to create ladder slippage thereby improving ladder stability.

Abstract: A multipurpose ladder accessory assembly for a ladder having a top rung, a penultimate rung and a multiple of lower rungs each extending between a first elongated ladder rail and a second elongated ladder rail defining ladder rails, each ladder rail having an upper end and a lower end, said accessory assembly comprising a first and second pair of ladder accessory arms each defining a first arm connected to the first ladder rail between the upper end of the first ladder rail and the penultimate rung, and a second arm connected to the second ladder rail between the upper end of the second ladder rail and the penultimate rung, such that each of the first arms and the second arms of the first and the second pair of ladder accessory arms are independently moveable from a folded position along the ladder rails to an extended position from the ladder rails.

Abstract: A safety device for measuring and indicating the level of a ladder having rungs extending between a pair of elongated ladder rails, the safety device comprising a housing dimensioned to be inserted into one of the rungs of the ladder, an electronic sensor disposed in the housing, a controller disposed in the housing, which is in electronical communication with the sensor, at least one indicator, and a power supply for supplying power to the device. The electronic sensor measures the inclination of the ladder to produce a measured inclination which the controller compares to a stored predetermined level value to produce a comparison signal. The at least one indicator receives the comparison signal and indicates to the user the comparison signal.