Dual ALARMS provide visual and audible “unlatched gate” warnings. Single alert beeps each time gate is opened. The dual alarm system sounds if the gate is not fully and securely latched. Quick and easy to install. Lockable to prevent opening without a key. Vertical and horizontal alignment indicators and adjustability allow proper gate & latch alignment with a screwdriver, during or after installation. Lift knob is ergonomic and child resistant. Industry-leading magnetic latching technology. Meets all pool barrier codes! ADA compliant! All mounting hardware and battery are included. Made of polymer, aluminum, and stainless steel – will not rust or corrode. Superior performance in extreme climates. Water resistant – rated to IP55. Tested to 2 million cycles with a limited lifetime warranty. MagnaLatch Alert is safety you can see and hear, even when you back is turned. Great for pet safety gates!