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Acculevel, High Accuracy Submersible Level Transmitter

Acculevel, High Accuracy Submersible Level Transmitter

The Acculevel high accuracy level transmitter incorporates microprocessor-controlled signal conditioning to provide outstanding accuracy over temperature. It provides dual outputs, one analog (current or voltage) and one digital RS485. The RS485 connection allows users to retrieve both level and temperature data, interface with a PC, and rescale the analog output from 10% to 110% of the basic range (converter cable and Keller software required).

  • Standard 3 Day Lead Time
  • Lifetime Lightning Protection Included
  • Free Shipping on First Order
  • SCADA Ready
  • Custom Cable Lengths
  • Spare Parts
  • No Minimum Order Quantity
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The Acculevel high accuracy submersible level transmitter provides an infinite combination of level ranges, output options, and cable lengths. This ensures the perfect fit for monitoring equipment. They are frequently paired with a SCADA, PLC, compatible display, and/or control system for use as a water level indicator or controller.

These submersible level transmitters, from KELLER America, offer high accuracy down to 900 feet, built in lifetime lightning protection, and standard three day shipping. Known for their superior reliability, reasonable cost, and ready availability, our submersible level transmitters feature small size and integral signal conditioning. This simplifies installation anywhere quality liquid level sensors are needed.

  • temperature compensation
  • user rearrangeable analog output
  • dual output: RS485 / ModBus, 4-20mA
  • operates in 0-900 feet of water
  • custom pressure ranges

Acculevel High Accuracy Submersible Level Transmitter

This exceptional instrument has certification to NSF/ANSI 61 and 372 standards for use in drinking water applications. And, on models with 4-20mA analog output, the Acculevel submersible level transmitter also includes a guarantee for lightning protection. This internal circuit comes at no additional cost and provides a lifetime warranty against damage from voltage surge.

Thermally-Compensated, Custom Range, Dual Output Submersible Level Transmitter

The Acculevel provides standard features that far exceed those of comparably priced transmitters, including standard ±0.25% FS or optional ±0.1% Total Error Band (TEB) accuracy. This level transmitter is approved to NSF/ANSI 61 and 372 standards for water quality and includes KELLER America’s guaranteed lightning protection, making the Acculevel an outstanding value for liquid level measurement.

The ability of the Acculevel to provide this level of performance over a wide range of operating conditions makes it ideal for an equally wide range of applications. Common applications include drinking water, stream and reservoir level, environmental monitoring, tank level, wastewater, etc.. It’s also ideal for installations in areas prone to chronic damage due to transients from lightning.


Pressure Ranges – Relative infinite between 0-3 and 0-900ftWC
Accuracy, Static at 77˚F (25˚C) standard: 0.1% FS
optional: 0.05% FS
Accuracy, Total Error Band Standard: 0.25% BR TEB
Optional: 0.1% BR TEB
(see data sheet for details)
Storage and Operating Temperatures 14 to 140˚F
(-10 to 60˚C)
Protection IP68 rating


  • certification to NSF/ANSI 61 and 372 standards for use in drinking water applications
  • 4-20mA models include a guarantee for lightning protection at no additional cost
  • 16-bit internal digital error correction for cost-effective low Total Error Band (TEB)
  • 316L stainless construction standard – optional titanium for severe applications
  • 2-year warranty covers defects in materials and workmanship
  • user-rangeable analog output ensures compatibility as requirements change
  • RS485 modified-MODBUS compatible interface allows up to 128 transmitters on a single bus
  • standard dual (analog & RS485) outputs simplify interface to controls, data collection, and telemetry systems
  • ARRA Section 1605 Compliant
  • standard 3-day lead time

Assembled in the USA

The Acculevel is assembled in the USA to customer specifications, including custom pressure ranges and cable lengths. Most orders ship in 3 business days or fewer.