... level meter LLXK-MR series resistance rotary sealing material level controller: Application l metallurgy, chemical industry, petroleum, electricity, food, paper, coal ... .3g/cm3 (large leaves) Ambient temperature -30 ~ +80 °C Power supply AC24V, 110V, 220V, 50/60Hz; DC24V Output Switching signal Out ... LLXK-M-R series resistance rotary fully sealed material level controller