Wireless Door Open Contact Sensor Alarm for Business/Store/Home/Office

📦 The sensor and receiver are already paired, so all you need to do is attach the transmitter, plug the receiver into any standard outlet, pick a tone you like, and you're good to go. 【Easy to Install】

🔋 With just a standard household AAA battery powering the equipment and an Ultra-Low-Power design, the sensor can easily last 1-2 years, allowing the battery to be replaced less often and saving you time and money. 【Built to Last】

🔔 This 500FT reliable long-range chime is a must-have for providing a perfect entry alert when the door opens, whether for your home or business. It's ideal for securing your front door, child safety gate, upstairs window, cabinet, basement door, and more. 【A Must-Have】

🔊 With 58 unique long and short tones and 5 adjustable volume levels, the max volume of 120dB is loud enough to be heard anywhere in the house, ensuring you'll never miss an alert. If you prefer not to be disturbed, you can simply set it to mute. 【Mute to 120dB】

💖 We've been making security products since 2004, so we have confidence in the quality of every unit we sell. Our one-year warranty and lifetime friendly service mean we'll never let you down. Grab your door dinger now! 【Reliable After-sales】

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