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You will be able to distinguish between the products by presenting the transponder to the devices. If the device responds, it is of the same type and frequency.
Please contact your DOM dealer to update your device with the latest firmware.
Normally a device will detect a battery change automatically. If this is not the case, use a "Change of Battery" indicator card. This card will reset the corresponding battery parameter in the cylinder and will be documented as an event. In principle, a battery change card has to be authorised on a device in the same way as a normal transponder authorisation.
You can update in the app directly from your smartphone.
See our "Manual of Signalisation" guide.
There is no exact minimum distance. It depends on the performance of the smartphone and the physical environment around the door.
