The controllers are housed in an ABS plastic enclosure with overall size of 70 mm (L) x 110 mm (B) x 105 mm ( H). The enclosure consists of a base and Plug in Controller module, which facilitates easy replacement at sites.
Models for oil fired burners Controllers:
710 - PR - MA (equivalent to MA-81O Controllers) sensing by LDR.
712 - PR - 24 - PI4 (equivalent to LOA - 21 & LOA - 24 controllers)
For Gas fired burners Controllers:
722 - FR - P5, where the flame sensing is done by using Flame Rod.
732 - UV - P5, where flame sensing is by UV Sensor.