Product: HUWOO Door Chime Wireless Door Contact Sensor Alarm for Home Business Office Store Door Open Alert with 7 Colour Flash LED Light 32 Ringtones 4 Volume Levels (1 Receiver + 2 Sensors)
Brand: HUWOO
【Door/ Window Open Alert】When someone opens the door or window, it will detect every entry and and the receiver will sound a bell. Remind you in time when the baby opens the window/door. Warn those unwelcome visitors and notify you at night. It can also be used in shops to welcome customers coming.
【Long Range & Stable】The distance of door chime is 1000ft in the open air. The door sensor can be installed on metal or wood. The strong and stable signal can ensure that you can hear the bell when you are upstairs or in the garden.
【Colorful LED Indication】7 LED indicator lights can make you more sure that someone is coming at night. Friendly to the elderly and the hearing impaired. 32 melodies and 4 volumes can meet your needs in different occasions.
【Waterproof Contact Sensor】The entry alert sensor is waterproof and can be installed outdoors.There is waterproof silica gel inside to protect the built-in 23A 12V alkaline battery from rain.
【Expansion System】1 receiver can be equipped with 20 sensors. You can DIY choose different ringtones to distinguish which door/window triggers the alarm. Before sticking the sensor, please take out the insulating paper and pair it with the receiver.

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