The Firefly Master Unit MU-E monitors and logs connected control units in a network. The master unit complies with EMC directives and is a reliable unit offering many innovative features.

Integrated printer in the master unit for providing hardcopy of information shown on the control unit's text displays.

Potential free alarm contacts that freely mirror alarms from connected control units.

User friendly operator's interface.

Large and clear text display - in a number of languages

Large capacity electronic log book.

RS 485 port for connection to the interface module allowing system information to be transferred to a PC or PLC system.

Battery back-up for a least 4 hours reserve operations as standard.

Easily placed - heavy duty enclosure with small dimemsions.