Mettler Toledo M800 Water multi-parameter transmitters provide centralized monitoring of critical analytical measurements across pure water and other industrial water systems. Available in two- and four-channel configurations, the M800 Water platform supports multiple sensor inputs and communication options to meet different monitoring, control, and data-management requirements.
Depending on the configuration, supported measurements include conductivity/resistivity, pH/ORP, dissolved oxygen, dissolved ozone, total organic carbon (TOC), and flow. Available communication and integration options include PROFIBUS DP, EtherNet/IP, analog output, RS485, and compatibility with RecordLOC PC software.

Key Characteristics
- Two- and four-channel configurations for multi-parameter water monitoring
- Supports multiple analytical measurements, depending on transmitter configuration
- Compatible with applicable Mettler Toledo ISM sensors
- Available PROFIBUS DP and EtherNet/IP communication options
- Selected configurations support additional flow inputs
- Color touchscreen interface for measurement viewing and instrument configuration
- RecordLOC-compatible configuration available for structured water-quality measurement data handling
Ideal Applications
- Pure and ultrapure water monitoring
- Pharmaceutical water systems
- Power plant water and steam-cycle monitoring
- Semiconductor water systems
- Multi-point industrial water monitoring
- Chemical process water applications
- Water treatment systems requiring centralized multi-parameter monitoring
Product Family Includes
- M800 Water 2-CH ProfiDP Transmitter (4-Wire) – Two-channel configuration with PROFIBUS DP communication.
- M800 Water 4-CH EIP Flow Transmitter (4-Wire) – Four analytical channels, two additional flow inputs, and EtherNet/IP communication.
- M800 Water 4-CH RecordLOC Transmitter (4-Wire) – Four-channel configuration supporting TOC, conductivity/resistivity, dissolved ozone, and RecordLOC-compatible data handling.
Industries Served
- Pharmaceutical & Life Sciences
- Power Generation
- Semiconductor & Microelectronics
- Chemical Processing
- Industrial Water Treatment
- Other Pure and Industrial Water Applications




