Door Sensor Chime Wireless Door Alarm PHYSEN Window Alarm Contact Sensor Door Bell for Office/Home/Store,Door Open Chime Operate Range 600ft with 58 Chimes 5 Volume Level

Product FeatureVoltage of plug-in receiver: 110V Working range:600 feet in open area Receiver volume Range:25-110 dB Contact Sensor Battery Type: 1*CR1632 battery Installation Gap Between the big door magnetic and the small door magnetic: 1cm Simple and Modern The wireless and portable design allows you to install the doorbell in any section of your  retail store, business, or home. It also can be best gift to present as its new design and nice appearance, are very popular for household Expandable Our wireless contact sensor are expandable,you can add more accessories such as receivers,contact sensor and motion sensor as you like,just following the pairing instruction to make them paired before using is fine Pairing instruction: 1)Plug receiver into outlet and select desired ring tone by short press receiver MUSIC button; 2)Then long press receiver VOLUME Control button for about 5-7 seconds until you can hear receiver "ding" with the blue light will be flashed(which mean receiver get into pairing mode) and please notice that receiver will exit the pairing mode automatically if it doesn’t get signal from sensor in 5 seconds. 3)so you should immediately Active the sensor to pair with the receiver and you will hear the tone you selected which mean your operation is successful. 4)Active the sensor to have a final check about the pairing works,if you can hear the tune you selected again,which means that your operation is completed successfully. Package Listing 1*Contact Sensors(double-side adhesive is included) 1*Chime(Receiver) 1*CR 1632 Batteries 1*User Manual Here at PHYSEN,we encourage you to make use of our Worry-Free Lifetime Warranty Guarantee A happy purchasing experience is the utmost importance to us and we will happily send a product replacement if any issues arise