Zinc Alloy Padlock with Alarm Function This zinc alloy rectangular padlock combines mechanical security with an integrated alarm function for added protection in daily use. The solid lock body provides stable durability, while the built-in alarm system can help deter unauthorized access through sound alerts. Zinc alloy body with rectangular structure for enhanced strength Built-in alarm function activates when vibration or forced movement is detected Compact design suitable for indoor and outdoor applications Corrosion-resistant surface treatment for longer service life Smooth locking mechanism with reliable opening and closing performance https://www.welislock.com/product/alloy-padlock/zinc-alloy-rectangular-padlock/