Transmitter M100 2H DR
High Performance with a Small Footprint. The M100 DR is a DIN rail mounted single-channel, 2-wire process transmitter that supports multiple parameters and HART communication. It is compatible with pH/ORP, pH/pNa, DO and conductivity sensors.
Low Installation Cost
M100 DR is an easy-to-commission 2-wire transmitter for installations where space is at a premium.
Predictive Maintenance
Access to ISM predictive diagnostic tools available over HART leads to reduced maintenance and increased process uptime.
Plug & Measure Operation
With iSense software, sensors can be calibrated via a PC or mobile device, then connected to the M100 without the need to recalibrate.

Model Family | M100 |
Measurement Parameters | pH; ORP; pNa; Dissolved Oxygen; Conductivity |
Channels | 1 |
Sensor Type | ISM |
Size | DIN Rail |
Power Supply | 14-30 VDC |
Current Outputs | 1 x 0/4-20mA |
Relays | None |
Digital input | 1 |
Analog input | 1 |
PID Controller | None |
User Interface | None |
USB Interface | No |
Ingress protection | IP20 |
Communication | HART |
Enclosure Material | PA-FR |
Wiring Mode | 2-Wire |
Hazardous area approval | No |
Hygienic/Biocompatibility Approvals | No |
Other certificates | CE compliant |
Primary Media/Application | Chemical Processes; Other Industrial Processes |
Material Number(s) | 30127720 |
Small Footprint
The M100 DR is designed to be DIN rail mounted. It is suitable for 35 mm wide DIN rail systems, and gives you the functionality that you require for control, without a local display.
Integration & Control via HART
The transmitter configuration and integration of sensor diagnostics into asset management tools is possible thanks to the integrated HART protocol. This ensures maximum compatibility and easy integration.
Easy-to-Analyze Indicators
The M100 DR is outfitted with two LEDs to clearly indicate transmitter and sensor status, and to communicate alarms and warnings visually to on-site maintenance staff.