Home Security Expandable Wireless Door Open Chime Door Entry Alarm with Operating in Range 320 feet/52 Chimes/1 Magnetic Door Chime Sensor & 1 Plug-in Receivers

Home Security Expandable Wireless Door Open Chime Door Entry Alarm with Operating in Range 320 feet/52 Chimes/1 Magnetic Door Chime Sensor & 1 Plug-in Receivers

• 【Wide Working Range】 The range of wireless receiver up to 320 feet in OPEN area, magnetic door sensor will automatically trigger the receiver when separated and the receiver will alert immediately whenever the door or windows is opened.
• 【Expandable】 Each wireless receivers can work with 20 transmitters at most and each transmitter can add more receivers.
• 【58 Music with Loud dB】 58 unique ringtones/chimes with 30-110dB volume range allow your wireless door entry alert system to meet any need.
• 【Mini Contact Sensor】They are small size and can be installed or placed at any in door position.1 year warranty,any quality problem,please contact us directly.
• 【Easy to Install】 Requires no wiring, Just plug the door entry alarm receiver into any standard outlet, Tear the double sides adhesive tape which on the back of mini door sensor and stick them to the door or window.