Vaisala MMT143 Moisture & Temperature Transmitter for Oil | Hinco

The Vaisala MMT143 moisture in oil transmitter is a compact and intelligent measurement solution for reliable online monitoring of moisture in oil applications. Using proven Vaisala HUMICAP® sensor technology, it simultaneously measures water activity (aw) and temperature — giving operators a direct, continuous indication of oil moisture condition without interrupting the system. Water activity measurement is independent of oil type, age, and temperature, making the MMT143 a versatile solution across a broad range of oil monitoring applications.

The MMT143’s compact transmitter design makes it well suited to OEM integration into monitoring systems, switchgear panels, and conditioning equipment where space is limited. Excellent chemical tolerance ensures stable performance in transformer, hydraulic, and lubrication oils. Its strong long-term stability reduces maintenance requirements and supports continuous analytical and process monitoring programs over extended service periods.

Key Features of the Vaisala MMT143

• Continuous online moisture in oil monitoring — detects excess moisture before equipment damage occurs
• Simultaneous water activity (aw) and temperature measurement in a single compact transmitter
• Proven Vaisala HUMICAP® sensor technology — over 40 years of field-proven performance
• Compact OEM design for straightforward integration into panels and monitoring systems
• Excellent chemical tolerance for stable measurement in transformer, hydraulic, and lubrication oils
• Strong long-term stability reduces calibration frequency and maintenance requirements

Vaisala Instruments from Hinco

Vaisala measurement solutions are available from Hinco Instruments, Perth’s authorised Vaisala distributor. Our team can assist with product selection, application guidance, and calibration services backed by over 70 years of instrumentation expertise across Perth and Western Australia. Contact us for pricing and availability.