C1
All functions in half space
Controller - Indicator - Transmitter
1/32 DIN - 48x24 mm 
   - Analogue retransmission
   - Serial communications

M1
Simple performance for simple applications
Temperature controller
1/16 DIN - 48x48 mm
   - 2 relay outputs
   - Configuration by simple codes 

M2
Born for the hot runners
Temperature controller for hot runners
1/16 DIN - 48x48 mm
   - 3 relay outputs
   - Current transformer input
   - Average safety output