Electronic Hygrostat EFR012 AC 120V, 40-90% RH System Climate Control SIVACON 8MF / 8MR - for climate control in cabinets. The system climate control meets specific requirements. SIVACON 8MR ensures the uninterrupted operation of electrical and electronic devices installed in the cabinet, even under adverse environmental conditions. It prevents the formation of condensate or frost damage and protects against resulting malfunctions. The portfolio ranges from filter fans to cooling and heating units, as well as thermostats. Alternatively, ventilated cabinets can be used in operating rooms, where system climate control is ensured through natural convection.