YML-650A is our electromechanical lock, which is suitable for one-way open and two-way open doors, including wooden door, metal door, framed glass door etc. Stainless steel housing, unique design for safety requirement, switches to working mode by manual control. All linkages are metal structure. Work normally under the temperature between -40℃and 60℃.Pass 500000 times test. Outstanding performance, prior choice for project.