Warmbier EFM51.VK Electrostatic Field Meter Verification Kit

Item #: 7100.EFM51.VK

  • Measure static fields, potentials, and discharge times
  • Measures static voltages within ±20kV (20,000V)
  • Two LED guide ring lights help position the field meter
  • Perform the Walking Test for floor evaluation
  • Pocket-size meter
  • Verify Ionizer with EFM51.CPS “Charge Plate Set”
  • Evaluate ionizer efficiency


Verification Kit for measuring electrostatic fields and electrostatic charges, as well as the body voltage of a person while performing the walking test. Additionally, the decay time and the offset voltage of ionizers can be measured.

The Warmbier EFM51.VK Verification Kit is a full-featured Static Field Meter Kit that can test static fields, ionizers verification and test the performance of ESD floors in combination with a person per ANSI/ESD STM 97.2. and IEC Standard 61340-4-5.

Field Meter

The EFM51 measures static voltages within ±20kV (20,000V) with a microcontroller that calculates the field strength (V/m) with a pre-selected distance (1cm, 5cm, 10cm and 20cm). Results are displayed via a 12 digit alphanumeric LCD screen. Two LED guide ring lights help position the field meter at the right distance from a charged test object.

Charge Plate System

The EFM51.VK can be used to evaluate ESD ionizers efficiency as well as perform static surveys and evaluate charge accumulation in electronic manufacturing and in industrial operations. The meter measures the decay time from +1.000V to +100V or -1.000V to -100V with its integrated start-stop timer. The plate is charged manually via the handheld high voltage generator.

Walking Test

The electrostatic charge of a person walking on an ESD safe floor with ESD safe footwear can be measured with the EFM51.VK. This test provides measurement data on the actual charge on a person while walking which is used to determine the effectiveness of the floor/footwear grounding system. The EFM51 holds the PEAK value of the measured body voltage, as well as the LIVE static voltage measured on the operator’s body.

The EFM51 meets periodic test requirements per Compliance Verification ESD TR53 and conforms to ANSI/EOS/ESD (S4.1, S7.1, S12.1, S2.1).


Additional information




14 x 13 x 4 inch


Walking Test, Measure Static Fields and Voltage, Ionizer Performance, Discharge Times


LCD Display

Power Supply

9V Battery

Operating Time

Approx 10 hours of continuous use with 9v alkaline battery

Part Numbers

Part NumberDescriptionSales Unit
7100.EFM51Electrostatic Field Meter EFM® 51Each
7100.EFM51.CPSElectrostatic field meter with Charge Plate EFM® 51 with charge plate setEach
7100.EFM51.CPS.SETCharge Plate Set for the EFM51 (Meter Not Included)Each
7100.EFM51.PLUSElectrostatic field meter with Conductive Black CaseEach
7100.EFM51.WTElectrostatic Field Meter with Walking Test Kit EFM® 51Each
7100.EFM51.VKElectrostatic Field Meter EFM® 51 Verification KitEach

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