Hey @Chiomagbai. The adhesive sticky tape that we use is going to be double sided Command 3M Tape. These tape bits are pre-cut for the Alarm Devices when they are first set up, but I’ve found that thenormal size work very well and are the same size as the device generally. If you want to make installation easier for the future (if you are to move again or need to rearrange the devices, reconnect them, bring near the Base Station), you can use the velcro version of the Command 3M Tape.
I personally like the velcro tape, as I move a lot from apartment to apartment over the years of my life, and it helps with taking down the devices, only to put them back up at another place. It makes taking down the device easy and more safe than a sticky piece of tape, and helps during times you may need to reconnect a device by bringing it near the Base Station (device offline, etc).