Electronic hygrostat EFR012 AC 120V, 65 %RH fixed System climate control SIVACON 8MF / 8MR - for climate control in the enclosure. System climate control to meet specific requirements. SIVACON 8MR ensures trouble-free operation of the electrical and electronic devices installed in the enclosure, even under adverse ambient conditions. Among other things, it prevents condensation or frost damage and protects against the resulting malfunctions. The portfolio ranges from filter fans to cooling and heating devices and thermostats. Alternatively, ventilated cabinets, in which system climate control is ensured by natural convection, can be used in operating rooms.