Maintain precise transformer oil temperature monitoring with a reliable solution engineered for demanding industrial environments. Built by Qualitrol of Sweden, this gauge measures up to 150°C and comes equipped with four independent switching contacts, giving operators the control needed to trigger alarms or protective actions at critical thresholds. With a generous 12-meter capillary length, installation flexibility is never a compromise — making this an instrument worth a closer look for any serious substation or power distribution application.