Features:Double-loop type limit switch. Strong structure, composed of zinc alloy and reinforced plastic. Small size, waterproof and oil-proof. Built-in micro switch, with double spring mechanism, longer mechanical life. Conduit design for easy wiring. Specification:Model (Optional): TZ-8112, TZ-8122Rated voltage: 250VRated current: 6AStructure type: Horizontal roller (TZ-8112 ), vertical roller (TZ-8122)Contact type: 1NO and 1NCShell material: Zinc alloy and reinforced plasticOperation head material: MetalPackage weight: Approx. 131g or 4.6ozPackage list:1 x Micro Switch1 x Pack of Screws Note:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.