Compact mechanical heat meter with optical IrDA data output and an additional socket for communication modules. It is compatible with Q M-Bus, Q walk-by, and Q AMR systems, with the modules sold separately. It is battery-powered with an 11-year lifespan.

• Measurement of instantaneous values with a pair of PT 1000 temperature sensors.
• Mechanical flow converter with inductive, magnet-free reading.
• 8-digit display with current and archived values, control totals, and maintenance parameters.
• 15 monthly archived data registers.
• Recording of maximum supply and return temperature and flow values, with date and duration.
• Programming via keypad from the display or via IrDA.
• Ability to add external or built-in AMR, Walk-by, and M-Bus modules (optional purchase).