Vaisala’s MM70 Hand-Held Moisture Meter allows for the consistent, dependable identification of moisture in lubrication and hydraulic oils. The MM70 is equipped for moisture measurements in oil in terms of temperature and water activity (aw) which reveals the potential of free water formation. More still, measurements are independent of age, oil type and temperature.
The MMP78 moisture in oil probe is crafted for the direct insertion (and removal) into the process pipe via the included ball valve without draining the system. The MM70 is also compatible with Vaisala’s humidity, dew point and carbon dioxide probes, rendering it a multi-parameter instrument. Supplied with the MI70 Link Windows Software and USB cable, Vaisala’s MM70 Hand-Held Moisture Meter for Lubrication and Hydraulic Oils is designed for maximum efficiency and productivity.
| Measurement parameter(s) | Water activity Temperature |
| Measurement range | 0 ... 1 aw -40 ... +100 °C (-40 ... +212 °F) T |
| Measurement accuracy | ±0.02 (0 ... 0.9 aw) ±0.03 (0.9 ... 1.0 aw) ±0.2 °C (±0.36 °F) T |
| Operating temperature | -40 ... +60 °C (-40 ... +140 °F) |
| Operating pressure | 0 ... 20 bar (0 ... 290 psi) |
| Operating voltage | Rechargeable NiMH battery pack and universal AC adapter |
| Analog outputs | 0 ... 1 V |
| Housing classification | IP65 (NEMA 4) for probe IP54 for MI70 indicator |