Product: Door Chime,Door Sensor Alarm,Koostone Wireless Door Alarm,Door Sensors for Home,Door Chime for Business When Entering,2 Pair Transmitters,1 Portable Rechargeable Receiver(Magnetic Base)
Brand: KOOSTONE
Color: White
Never Miss a Customer When Door Opens for Business Entry 
 Koostone door sensor always monitors door opening, you will be reminded if someone open the door.
 The Wireless door chime would be the most conscientious and committed worker in your shop.
 3 Levels Volume Control and 400ft/120m Wireless Long Range
 3 levels volume on each ringtone, allow you lower voice to silence or turn the volume up to 110dB.
 It is small and lightweight, you can take the wireless battery doorbell receiver almost anywhere
 in your home/shop or fix it in one place which with metal or without metal.
 Parameters of Door Chime Receiver:
 Battery: 150mAh Aluminium Rechargeable Battery;
 Expandable Multiple Smart Receiver or Sensor: < 20pcs;
 Volume Range: 0~110dB;
 Working Temperature：-30 ℃ ~ +70 ℃;
 Wireless Range: 400 feet/120 meters;
 Parameters of Door Chime Transmitter:
 Battery: 23A 12V Alkaline Battery;
 Wireless Transmitting Distance: ≤ 400ft/120 m (in open area) Working temperature: -30 ℃ ~ +70 ℃;
 Package: 
 1* Receiver (Magnetic Base);
 2* Door sensor (battery included);
 3* 3M Double tap;
 1* Metal Sheet Base (with 3M double tap);
 1* User Manual;

Protable Wireless Battery Doorbell Receiver -This retail door entry chime receiver dimension is L2.9in * W1.7in * H0.9in, it is very lightweight and small; the base is magnetic, you can fix it anywhere with metal, you want to fix it in one place which has no metal? Don't need to worry about that, the package also provides one metal sheet with 3M double tape; or you can take the receiver anywhere.
Different Transmitter Set to Different Chime -NOTE: please fully charge to active the receiver battery before use it. Koostone wireless door chime comes with 2 pairs of sensors and 1 rechargeable receiver, each transmitter can set up a separate chime, which means you will know the front door or the back door or the mailbox opens without needing to go to see it. Sensor will be triggered to send out a signal when door/window/fridge opens, receiver receives the signal and alerts.
Individual Ringtone and Volume Options -4 unique ringtones/chimes(plus a mute) with 3 levels volume of 0-110dB(plus a mute), 110dB sound is equivalent to a rock concert environment, so you don't need to worry that you can' t hear it; you are free to choose a favorite chime and volume. The receiver only flash when you choose mute mode. The wireless door open chime covers a distance of more than 400ft/120m wireless range, wireless signal can also go through most objects, such as concrete wall.
Easy Pairing - NOTE: fully charge the receiver to active battery before use it; ▲Step 1: click the music button to choose a ringtone, click the volume button to choose volume; ▲Step 2: keep pressing the volume and music buttons at the same time for 1s （or 5s）until hear ONE Ding sound; ▲Step 3: separate the magnetic and sensor quickly, you will hear TWO Ding sounds, congratulations, paring is completed. PS: the same way to pair the second pair of sensor, and you can choose a different c
Expandable & Warranty-This rechargeable door/window security chimes features each sensor or receiver expandable, add more receivers or sensors to set up different chimes for front door, back door, kids'door, elders' door, windows etc.. Briefly speaking, one receiver can pair multiple sensors (about 20pcs), one sensor can pair multiple receivers (about 20pcs), but they all need to be Koostone Brand wireless door chime. We provide 12-month worry-free warranty and friendly customer service.

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