Product Description 
Marathon MM  Rev. D7 Jul 2017  13 
2 Product Description 
The  Marathon  MM  is  a  multi-purpose,  high  performance  single  color  infrared  pyrometer  with  an 
extensive feature set, rugged industrial housing and a high level of functionality. The sensor is available 
in different spectral responses to accommodate the wide range of industrial applications requiring non-
contact temperature measurement. It is intended to be simple to operate, with a user-friendly interface 
and well suited to a wide variety of industrial applications. 
Each sensor has a rugged stainless steel housing, a rear membrane panel with backlit LCD display, and 
a standard through the lens sighting with optional laser target sighting. Alternative to the laser sighting, 
a video sighting is offered as an option. The Marathon MM is also available with remotely adjustable 
precision focus optics. Users can easily adjust the focus of measurement targets, either by push-button 
on the rear of the instrument, or remotely via the RS232/RS485 connection from a PC. 
Each model operates as a temperature measurement subsystem consisting of optical elements, spectral 
filters, detector, and digital electronics. All components are water-tight NEMA-4 (IP65, IEC529) rated 
and are built to operate on a 100 percent duty cycle in industrial environments. Simultaneous analog 
and  digital  outputs  consist  of  standardized  signals  commonly  available  for  use  with  computers, 
controllers, recorders, alarms, or A/D interfaces.