Questions about Doro 3500 Alarm Trigger

The manufacturer doesn't seem to give any information on this and unfortunately I didn't find any other precise answers to your question. I assume, however, that this should be possible. If not, you should be able to return the item if necessary.

How long a battery lasts is unfortunately not specified anywhere, but the following battery type is required: CR2032.

According to the manufacturer, all Doro smartphones are compatible with the Doro 3500, except for the models 740, 745 and 810. You can find all smartphone models from Doro that should fit under the following link: https://www.digitec.ch/de/s1/producttype/mobiltelefon-24?bra=876&tagIds=82&pdo=13-9515%3A188207%7C13-9515%3A327247 . We also have a set with the Alarm Trigger and a Doro 8040 smartphone. You can find it under this link: Doro 8040 + Alarm Trigger (5", 16GB, 8MP, Graphite)