I’ve recently purchased some of the vibration alarms and I’m very impressed with them and they certainly have added huge peace of mind to us. Really great price and are very effective. I ended up deciding to move one of them as I didn’t like where I had initially positioned it. Unfortunately if you do that, it is very difficult to save the double sided adhesive tape. I contacted the Sales department via email to enquire if I could buy the stickers separately. Joanne emailed me back almost immediately, asked my how many I needed and then said she was sending them in the post to me. The after sales service is excellent and I will certainly purchase again in the future. Thank you!