Super Loud 120 DB Reminder: When you touch it, the door handle alarm will make a loud sound to remind you that there is an intruder, preventing thieves from sneaking into your room and causing damage to your property or ginseng safety.Double Protection: The door alarm can add a second-level protection lock on the basis of the original door lock, and the window alarm also has a stronger anti-theft performance for safety.Easy to use and operate: Simple operation, the door opening sensing alarm button controls the doorbell or alarm, and dual modes can be selected without complicated operating procedures.Can be carried with you: Battery powered (without battery), no annoying cables are required, just hang the door alarm sensor directly on the steering wheel handle inside the door, turn on the power switch to activate the protection alarm.Travel Protection: The window alarm door handle alarm can be used for travel and hotel stays. You can hang this alarm on doors and windows to prevent illegal entry. Widely used in homes, offices, factories.