Odyssey’s Mini Switch Monitor is a miniature interface with an entirely new housing. The unit is designed to fit into equipment with limited space or mounted within an enclosure such as a manual call point.
The interface can also be fitted onto a standard 35mm DIN-rail using a twist-click motion* the unit is designed to monitor the state of one or more single-pole, volt-free contacts and reports the contact status to Odyssey-compatible control panels.

Downloads:

200-201 Datasheet