... -3 Level Display Controller composed of two parts: Display and Control Instrumentation and Sensor. Measured medium is water, oil, acid, alkali ... underground pool, water tank measured within the medium and remote control, and also can be monitor, display, alarm in the central ... float, test tube, flange and junction boxes etc. Range: S-type ≤ 4M, G type, F type: ≤ 12MH1, H2 can not be less than 100mm ...