HENDUN Motion Sensor Doorbell, Door Chime for Business, Store Welcome Buzzer Monitor, Commercial Door Entry Alert,Motion Detector Alarm, Caregiver Reminder for Elderly, Visitor Bell Dinger

C’est fiable et prévient le vol près des portes d’entrées. Il est en fonction depuis 2 1/2 ans sans problème. Nous avons branché le tout sur ports USB. Très fiable. Je recommande

Facile a placer

Works perfect for what we need. Installed above the entry door to our open floor office.

I bought this unit for use as a motion activated doorbell for my store as the one we had was way too quiet to be effective. The unit was easy to install and works perfectly; it's a great value at under $30. The chime unit can be free standing or mounted. The motion sensor can be mounted with mounting tape or screws (included) upside down sideways and has an adjustable bracket. I recommend using screws instead of the mounting tape included as the mounting tape is the standard two sided white foam type that will eventually dry up after a few years and sensor may fall. If you don't want to use screws, I would recommend you buy some 3M auto molding tape which seems to last forever and is very hard to remove. The sensor and transmitter range is fantastic and I had no trouble in my store with it (supposedly it has the range of up to just over the length of 3 football fields). I initially just put batteries in the chime and motion sensor after unboxing and installed them. The default setting is a motion activated door chime that is a loud ding dong ding dong. I did not realize that the unit had a host of other tones, features, voice you can program using the 4 buttons on the unit. I found the programming to be a bit tricky and for my use, the other features are overkill since I just needed it as a motion activated door chime. After messing with it, I found out that it has 4 volume settings. The default setting is set at the LOUDEST setting which is great for some uses. For my roughly 10,000 SQ FT store, the second volume setting is adequate if you do not have any background music playing.

An unserer Ladentüre hatten wir jahrelang diese zwei Kontaktsensoren an Türrahmen und Tür, furchtbar, nie das Richtige gefunden und immer hat die Tür Signal gegeben obwohl sie nicht Auf ging. Dann habe ich gewagt das hier zu probieren und kein Mitarbeiter beschwert sich mehr über unnötiges klingeln es funktioniert einwandfrei 👍🏻