This logger has multiple inputs/outputs:
- 4 analog independently configurable inputs
- 2 voltage-free counting contact inputs
- SDI-12 “Master” port compatible with version 1.3.
- RS485 port Modbus-RTU configurable as “Master” or “Slave”.
- Ethernet MODBUS TCP/IP (optional as HD33MT.4/E or HD33LMT.4/E).
- 2 voltage-free contact alarm outputs.