SECRUI Door Chime, Wireless Door Open Contact Sensor Alarm with 500ft Range, 58 Chimes and 5 Volume Levels for Business/Store/Home/Office When Entering, White

This is an excellent dual door opened alert system with long range and multiple tones selectableVERY simple to install using the supplied perfect shaped sticky pads (or supplied screws)High quality electronics and plastic mouldings - if you need a professional door opened alert system - choose this 5* productAlso, excellent and fast responding customer service from the manufacturer via Amazon messaging, if you have any questions about the productDefiantly recommended - feedback by me, an independent retail purchaser of this product via Amazon UK

good distance between alarm and the alerter

The product was good when it worked however after 3 months it just wouldnt stopp and kept going off constantly even when door closed.

So easy to install. I did this while working in the office. We needed this as working in the back office cannot always hear customers coming into the shop. So many different music modes and volume adjustment is great.

Amazing

Thankfully this can be screwed in - the main body of it at least - which is a definite bonus because if you rely on the sticky back attached to it you will be very disappointed. I didn't want to screw in until I was happy it worked well and it fell off the very first time I closed the door. The smaller piece doesn't include screws but that has held, so far.I have the main body attached to my business front door to alert when customers come in, with the sound part in the kitchen at the back of the shop - a distance of around 20 metres and it works perfectly. I had read some people say they couldn't get it to connect but I had no issues. I plugged it in, opened the door and it worked straight away. I haven't tried to see if I could get the different sounds as I am happy with the generic ding-dong so can't comment on how easy/difficult that is but if you're happy to have a ding-dong then plug it in and away you go.

This door chime has a volume control and loads of chimes. The top volume is very loud which will suit someone who has hearing problems.

It has a lot of choice of tunes that can be chosen from. The only improvement I would suggest to the manufacturers is to increase the choice of single beep choices instead of having the long tunes playing.