Level Indicators

4B offer a variety of level indicators to detect high / low levels of bulk granular material in bins, tanks and silos. The range includes capacitance point level indicators, rotary paddle switches and capacitance proxy  level / plug detectors. 4B level sensors can be connected to a PLC or to one of 4B’s hazard monitoring systems to provide alarm and/or shutdown of your machinery.

Compare Level Indicators here.

View our NEW Electronics Catalogue here.

  • Capacitance probe; detects the presence or absence of liquids and free flowing bulk granular materials and powders such as grain, feeds, seeds and chemicals
  • Application: level indicators (tanks / silos); choke switches (chutes, conveyors, elevator legs)
  • Detects presence or absence of liquids & free-flowing bulk granular materials
  • Easy installation & self-containing
Electronics Application:
Belt Conveyor, Bucket Elevator, Silos & Storage
  • Radio Frequency Level Indicator
  • Suitable for almost all liquids and granular materials
  • Detects presence or absence of material by measuring electrical "capacitance" in the vessel
  • Unique 'Power Shield' ignores material build-up on the probe
  • Standard probe lengths of 100mm, 200mm, 1M, 2M & 10M.
  • Remote / high heat options available up to 250∫C
Electronics Application:
Silos & Storage
  • High and Low Level Indication
  • Ideal for High temperature and Vibration Applications
  • Fail-Safe and Push Button Calibration
  • Digital Display and Internal Timer
  • Power Shield Compensates for Material Build Up
  • Probes up to 10m Length Available
  • High and Low Level Indication
  • Ideal for Low Profile Applications
  • Fail-Safe
  • Push Button Calibration
  • Digital Display and Internal Timer
  • Power Shield Compensates for Material Build Up
  • Single point rotary level indicator
  • Detects presence or absence of bulk materials using a rotating paddle
  • Shaking action sheds material build up
  • Adjustable torque control
  • Indestructible direct stepper motor drive
  • No clutch or gearbox
  • Fail-safe rotation detection
  • Selection of paddles, extension shafts & mounting plates to suit most applications
Electronics Application:
Silos & Storage
  • High and Low Level Indication
  • Dust Hazard Approved
  • Internal Sensitivity Adjustment
  • Adjustable Timer
  • Power Failure Alarm
  • 14 Foot Vertical Extensions (Maximum)
Electronics Application:
Silos & Storage
  • High or Low Level Indication
  • Low Cost Version
  • Automatic Power Shut Off
  • Limit Switch Contact Output
  • Heavy Duty Version Available
  • 14 Foot Vertical Extensions (Maximum)
Electronics Application:
Silos & Storage