Vaisala MMT330 Moisture and Temperature Transmitters for Oil – For Transformers Oil Monitoring and for Hydraulic and Lubrication Systems


Vaisala HUMICAP® Moisture and Temperature Transmitter MMT330 enables fast and reliable detection of moisture in oil in transformers and in central lubrication systems, hydraulic systems.

Key Benefits

Easy to install and operate

Installation through ball valve. No need to shut down the process



Online, real-time detection of moisture in oil without sampling.



Tells the true margin to water saturation point in all changing conditions, taking into account e.g. temperature changes and aging of oil.