NineLeaf Door Alarm When Opened, 108dB Sliding Door Alarms and Sensors for Home Security, Wireless Burglar Alarm with Remote for Apartment Business Office Entry IP66 Waterproof 4 Volume Levels, 20Pcs

【108dB Alarm】The door alarm with remote emits a 108dB sound, powerful enough to deter thieves and ward off intruders. Its IP65 waterproof rating allows it to withstand various weather, making it suitable for outdoor use. With 4 cyclic alarm tones, 4 doorbell chimes, and 4 adjustable volume levels, it offers great versatility and convenience. 【Alarm Mode】Alarm Mode: Once the system is armed, if a door or window is opened by around 4cm (1.57 inches), especially for patio sliding doors near a pool, the alarm will go off instantly and ring continuously for 30 seconds. This quick response feature helps ensure the security of your property. 【Doorbell Mode】When you want to use it as a doorbell, simply press and hold the bell button. You can cycle through 4 different doorbell sounds, allowing you to personalize the welcome tone for your home. 【Emergency Function】No matter which mode the device is in, pressing the emergency button will trigger a 30 - second alarm. This provides a reliable safety measure in case of any unexpected situations. 【200FT Remote Control】Experience operation with the wireless remote door alarm. Its remote control feature offers remarkable convenience, boasting a maximum range of up to 200 feet. You can now startle potential intruders from afar, all while remaining undisturbed yourself. 【Reliable False Alarm】As strong magnetic detection technology, this alarm system guarantees no false alarms, even when dealing with wider door gaps. Just ensure the distance between components is within 2 - 3 cm (0.78 - 1.18 inches). 【Versatile Applications】These door and window open alarms are incredibly versatile. They are a perfect fit for a wide range of settings, including residential houses, apartments, swimming pool areas, small commercial premises, pool sliding doors, front and rear doors, as well as sliding glass doors.