Define Instruments TM-2HLI Isolated Head-Mount Temperature Transmitter (RTD/TC)
The Define Instruments TM-2HLI is a loop-powered, high-isolation head-mount transmitter for RTD or thermocouple inputs, delivering a 4–20mA output with fast USB setup.
The Define Instruments TM-2HLI Isolated Head-Mount Temperature Transmitter converts RTD and thermocouple signals into stable analog outputs for industrial control systems. This isolated head-mount temperature transmitter installs directly inside sensor heads and protects signals from noise and interference.
Engineers use it for accurate temperature monitoring in process plants, machinery, and HVAC systems. The TM-2HLI delivers clean and reliable temperature signals to PLCs and automation equipment. It integrates easily with controllers such as the PRO-RTD Temperature Controller for dependable system performance.
Built for industrial environments, the TM-2HLI supports new installations and retrofit projects that require signal isolation and stable temperature transmission. For technical specifications and wiring details, please refer to the Define Instruments documentation or see the attached PDF.


