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SmartBob AO

With a built-in 4-20 mA output and integrated keypad, the SmartBob AO level sensor automatically transmits data to a PLC each time it takes a measurement.

SmartBob®: Automates the tape measure

The SmartBob remote is the core of a complete level measurement system using cable-based sensors to reliably measure levels in bins up to 150 feet tall.

Tired of climbing bins? Want to automate and keep it simple?

Bob is a model citizen:

Submersed solids: The SS is designed for brine tanks and measuring the level of solid materials below a liquid surface.

Analog Output: The AO has a built-in 4-20 mA output and integrated keypad that automatically transmits data to a PLC with every measurement.

MultiBob: Mount from 2 to 32 remotes on a single vessel and Binventory software will average the measurement data from all the sensors.

High Temperatures: The HT remote is designed with a standpipe that allows the remote to be used at process temperatures between 240°F and 500°F.

Options galore!

Software: Level data on an BinCloud web application or the Binventory LAN-based software

Consoles: C-100 push-button console is a centralized local display for all your bins

Cable: Nylon, Teflon jacketed, bare stainless steel, and FDA-approved nylon.

Probes: Spikes, spheres, inverted cones, Teflon coated, digestible bottles, and glass

Mounting plates: 0° for flat roofs; 5°, 10°, 15°, 20°, 24°, 30°, 35°, and 40° angled for sloped roofs

Heaters: Optional protection keeps the gearbox warm in cold climates

Pipe extensions: CPVC and stainless steel in lengths from 6 to 60 inches

Why you will love Bob:

  • Works in solids, slurries, brine, or liquids
  • Vessel heights up to 150 feet
  • Works in dust, immune to noise
  • Built-in cable cleaning system
  • No field calibration required
  • Class II, Groups E, F & G certifications

SmartBob is an economical mechanical solution with a long service life. Get a quote today!


Inventory Management
Ensure adequate supply for production, prevent material shortages.


Remote Monitoring
Manage inventory while in the plant, while traveling, or away from the office.


Vendor Managed Inventory
Engage suppliers in replenishing the supply chain to optimize purchasing.


Storage Dome Monitoring
Monitor conveyed or truck loaded materials in large storage structures.

sediment detection

Sediment Levels 

Detect solid material settled in a tank containing liquids

More Information
Means of MeasurementPlumb Bob
Measurement TypeContinuous Level
MediumSolids, Liquids
Voltage 115 VAC, 230 VAC
OutputsSmartBob Protocol
Ambient Temperature-40°F to +185°F (-40°C to +85°C)
Process TemperatureUp to +500°F (260°C)
ApprovalsCSA Class II, Groups E, F & G
Enclosure TypeNEMA 4X, NEMA 5, NEMA 9, NEMA 12
Enclosure MaterialPlastic
Mounting3" NPT
Conduit Entry0.75" NPT
Range150 ft. (45 M)



Learn about SmartBob yo-yo level sensors.

Factory testing of SmartBobs.

Remote inventory monitoring.

Introductory video to SmartBob.

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