Compro Cm500 Digital I/O Expansion Box – 3X 2Pin Input

Compro CM500 digital i/O expansion box

Features:
– 3x 2pin input (for smoke/PiR detector/door magnetic)
– 3x 3pin relay output (for alarm/warning light/siren)
– For iP90, iP530, iP540, iP550, iP570