The Mettler Toledo M800 Process 1-CH (4-Wire) is a single-channel, multi-parameter transmitter for in-line process analytical measurements.
Its full-color touchscreen provides a centralized interface for viewing measurement values and managing the connected analytical sensor.
Designed for use with compatible ISM sensors, the transmitter supports a range of liquid and gas measurement parameters within a single-channel configuration.

Key Characteristics
- Single-channel, four-wire process transmitter for compatible ISM analytical sensors
- 5.7-inch full-color touchscreen operator interface
- Supports parameters including pH, ORP, conductivity, dissolved oxygen, optical dissolved oxygen, dissolved CO₂, and gas-phase oxygen
Ideal Applications
- Single-point pH, ORP, or conductivity measurement in industrial process streams
- Dissolved oxygen, optical dissolved oxygen, or dissolved CO₂ monitoring
- Gas-phase oxygen measurement using a compatible analytical probe
Parameters
- Conductivity
- Dissolved CO2
- Dissolved Oxygen
- Gas-Phase Oxygen
- ORP
- Optical DO
- Turbidity
- pH
Communication
- None
Product Family Includes
- M800 Process 1-CH (4-Wire)
- M800 Process 2-CH (4-Wire)
- M800 Process 4-CH (4-Wire)
Industries Served
- Chemical Processes
- Other Industrial Processes
- Other Water Processes
- Wastewater







