Moisture Meter for Oil MM70 enables reliable detection of moisture in oil. The probe can be inserted directly into the process pipe through a ball valve without draining the oil in the system. The MM70 measures moisture in oil in terms of the water activity (aw) and temperature (T). Water activity directly indicates whether there is a risk of free water formation. The measurement is independent of oil type, age and temperature. The MM70 is an ideal tool for the preventive maintenance of oil-filled systems. The water activity measurement indicates the margin to free water formation, which causes severe problems in lubrication systems.

The MM70 enables reliable detection of moisture in lubrication and hydraulic oils. It measures moisture in oil in terms of water activity (aw) and temperature. Water activity directly indicates whether there is a risk of free water formation. The measurement is independent of oil type, age and temperature. The probe can be inserted (and removed) directly into the process pipe through the supplied ball valve without draining the system.

The MM70 also supports the use of Vaisala's humidity, dew point, and carbon dioxide probes, making it a versatile investment applicable to several multi-parameter applications. Two probes can simultaneously be connected to the MM70.

The MI70 Link Windows® software and the USB connection cable form a practical way for transferring logged and real time measurement data from the MM70 to a PC.