Power transformer monitoring

Proven from the arctic to tropics to offshore, our flagship DGA monitoring system offers long-term stability, zero maintenance, no false alarms and a revolutionary method for detecting ambient air ingress. Or get a step ahead with industry-leading transformer moisture and SF6 gas measurement instruments for your high voltage assets.

MMT330 Moisture and Temperature Transmitter Series for Oil

Moisture and Temperature in Oil Transmitter Series MMT330

Note that the MMT330 series is being discontinued. 

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

MMP8 head & body

Moisture in oil probe MMP8

Smart and robust. That’s Vaisala MMP8. Powered by the Vaisala HUMICAP® sensor technology, it has become a virtual standard in its field.

DPT145 Multiparameter Transmitter for SF6 Gas

Multiparameter Transmitter DPT145

Our uniquely capable Multiparameter Transmitter for SF6 gas opens for you the world of online measurement of dew point, pressure, and temperature. It also calculates four other values, including SF6 density. 

Vaisala’s Optimus™ DGA Monitor OPT100 for advanced dissolved gas analysis with total gas pressure method, detecting air leaks in transformers.

Optimus™ DGA Monitor OPT100

Ensure your power transformer stays operational longer. OPT100 brings unmatched long-term stability, reliability and measurement performance for detecting the formation of fault gases.