F.W. Bell

Sypris Test & Measurement

AC Current Sensors


  • UL listed
  • Loop powered
  • Range selected on sensor
  • Only requires two wire connection
  • Split core model is available for easy installation

Closed Loop Current Sensors

They offer fast response, high linearity and low temperature drift as well as relatively immune to electrical noise. They are the sensor of choice when high accuracy is essential.

F.W.Bell 4100 Series ELF Meter

F.W.Bell 4100 Series ELF Meter

  • Low Cost, Small, Lightweight, and Portable
  • High Accuracy
  • Gauss or Tesla Display Units
  • 0.1 mG /.01?T resolution
  • Low Battery Detection

F.W. Bell 7000 Series Gaussmeter

F.W. Bell 7000 Series Gaussmeter

  • Bright 1/4-VGA readout
  • Fully menu-driven for easy operation
  • Large electroluminescent graphic display
  • Auto Zero and Auto Calibration
  • Over 100 standard probes available

Open Loop Current Sensors

An open loop current sensor consists of a Hall sensor mounted in an air gap of a magnetic core. The current carrying conductor placed through the aperture of the sensor produces a magnetic field that is proportionate to the current.

MagScan 50 Magnetic Scanning System

MagScan 50 Magnetic Scanning System
By offering an enhanced scanning resolution and field sensitivity, the MagScan 50 is capable of mapping the magnetic field around a component with great accuracy.

F.W.Bell 5100 Series Gaussmeter

F.W.Bell 5100 Series Gaussmeter

  • The Best Accuracy in its class
  • The only handheld instrument utilizing DSP (DigitalSignal Processing)
  • Probe Included
  • Auto Zero
  • Min/Max Hold