The Honeywell UC1221 is a 12 Volt 2.1aH backup Alarm Battery suitable for many of the Honeywell and Texecom Alarm Panels.
It is a sealed lead-acid battery and retails using the product code from Honeywell of UC1221.
The dimensions of the battery are (L) 180 X (D) 35 X (H) 60mm
If you require a shorter battery backup time please see Battery UC12102