Wireless Door Sensor Alarm with Chime - 1000ft Range, 60 Sounds, 5 Volume Levels for Home, Business, and Office

About this item

• [Distinguish Front and Rear Doors] All receivers will ring no matter which door is opened, but each door has a different tone, so you know where your guests are. If you want the sensor and receiver to work one-to-one, please try the steps in "How to clear the frequency and re-pair".
• [Longer Range] Up to 1000 Feet (300m) in the open air from the sensor (150m if there are walls). Cover your house or store, ensures you will never miss a visitor. Include one 23A 12V battery in equipment and design of Ultra-Low-Power, the battery can easily last 1-3 years.
• [Ready to Use] This doorbell has been pre-paired prior to shipping. There's no requirement for wiring or professional installation: just connect the receiver to an outlet, and attach the door sensor to the door using the included double-sided tape, and you're all set.
• [Sensor upgrade] In order to avoid battery consumption during storage and transportation, we added a power button on the sensor, if not used for a long time, please turn off the sensor to extend the battery life.
• [Multiple Features] The door sensor chime is equipped with 60 different chime options and 5-level of volume range from 0dB to 110dB, so you can create a comfortable environment for your family. Silent mode with just LED flash is available when you don't want to be disturbed.