374T US26D Von Duprin Exit Device Trim Thumbturn Trim, Satin Chrome

Standard operation, key locks and unlocks thumbturn. Optional operation, key unlocks thumbturn, re-locks when key is removed. This operation is created by changing the cylinder plate included with control. Use 1 1/2 In. mortise cylinder with a straight cam. Schlage cam reference B502-191. Not available for 3349/3549 devices.