Door Sensor, Wireless Door Alert Chime Kit for Home/Office/Store, Coolqiya Door Open Chime Alarm Entry Alert System Operating at 600 FT Range with 5 Volume Levels & 58 Melodies, LED Flash

Key features

• 🔔【How Does Door Sensor Alarm Kit Works?】- Attach 2 sections of sensor to a door/window frame. When you open the door, it will trigger the alarm unit and ring.
• 🔔【Multiple Ringtones】600 FT in OPEN AREA RANGE- 58 Ringtones & 5 Level Volume (0 dB to 110 dB) to Adjust. LED indicators are suitable for the elderly and hearing impaired
• 🔔【Wireless Door Entry Alert Chime System】- Wireless Door Entry Bell Alert System- Will Keep track of your little children, use for home to alert you when someone open the door; Also use for garage/office/retail store.
• 🔔【Easy To Install & Expand】- Easy To Install & Expand- Simply get the bell plugged into socket and Tear off the double-sided tape of the sensor and stick it on the door frame. You can add extra 20 receivers/transmitters.
• 💖【After-Sale Service】- Approved by FCC, CE and RoHS; 💖Friendly customer service in 24hrs to make sure your satisfaction, any question please feel free to contact us, we will serve you sincerely.