EM0100DT/DR
Instantaneous flow indication.
2-way system of the comparative output.
Pulse output
Data backup function by EEPROM.
EM0900/1000ET

Instantaneous flow indication.
Pulse and 4-20mA input.
Comparative output by two way systems/integrating batch output/4-20mA output.
EM30DT

Instantaneous flow indication.
2-way system comparative output.
Pulse input
Data backup function by EEPROM.
MEM600DR

Two staged comparative output.
RS-485 connector to communications.