The Notifier IBS3 was an addressable base sounder unit for use with the Notifier Analogue Addressable range of fire alarm control panels. This device is now obsolete and has been replaced by the Notifier ABS32/W and Notifier ABS32/W-I range of sounder bases.
The Notifier ABS32/W & ABS32/W-I can be used as a like for like replacement for the Notifier IBS3 Base Sounder. In order to switch the devices a Notifier LPBW Base Plate should also be used. This new sounder base is compatible with the same range of detectors as the Notifier IBS3 unit.