Ultra Stable Surface DC Volt Meter USSVM2


An electrostatic meter, the USSVM2 reads static electricity without contact. It measures voltage on surfaces and can be used to calculate charge density on insulators. It has peak hold and a resolution of 1/10 of a volt on a 20K volt range.

Product Documentation


Clear selection
SKU: USSVM2 Category:


Product Description:
The Ultra Stable Surface Voltmeter Model USSVM2 utilizes a sensor shutter/switcher technology which provides long term stability without drift. This technology also eliminates false or offset readings due to charged air molecules (air ions). The sensor has a 29 inch detachable cable which can be extended up to 9’.

The meter measures the magnitude and polarity of static charge on objects or surfaces. The sensor is calibrated for measuring a surface at 1” from the end of the sensor.  On metallic or conductive surfaces, the meter measures the voltage on the surface. (As with any electrostatic voltmeter, the displayed reading depends somewhat on the size of the object being measured and the distance between the object and the sensor.) On insulating surfaces, “voltage” is not a well-defined number. In this case, the meter reads a number proportional to the static charge present.

The SVM2 has high sensitivity (resolution), and can detect even a 1/10 volt charge anywhere within its full range of +19,999.9 to -19,999.9 volts. Thus it is easy to measure whether a given process is increasing or decreasing the static electricity present, even if the increase or decrease is by a tiny fraction.

A peak hold function displays the highest positive or negative level measured since the last time that the peak hold values were cleared. The peak value is the maximum deviation from zero, and the polarity is indicated.

An analog output jack provides a DC output voltage of +/- 0 to 2 volts which proportionally corresponds to the display measurement of 0 to 20K Volts.

USB port allows reading to be recorded and uploaded to a PC. Real-time data streaming is also supported via the USB Port.

Comes with NIST traceable calibration certificate. Yearly calibration service available from AlphaLab Inc.

With this meter, all of the following can be measured:

  • The amount of charge (or voltage) on surfaces and the effectiveness of antistatic processing. Measuring a tiny fractional change in the surface voltage is useful because it tells you whether the problem is getting better or worse as a new remedy is tried and modified.
  • The location, strength and polarity of all static sources.
  • The approximate conductivity or ohms per square of surfaces.
  • The approximate attractive/repulsive force between charged surfaces. (This can be calculated from the readings.)
  • Voltage differential through the thickness of an insulating sheet or film


  • NIST Traceable
    NIST traceability calibration certificate included.
  • Analog Output Jack
  • USB Data Logging with AlphaApp.
  • Detachable Rubber Boot
SPECIFICATIONS: Ultra Stable Surface DC Voltmeter Model USSVM2
Range at 1”: ±19,999.9 V
Resolution at 1″: 0.1 Volt
Accuracy: ±2% of the reading
Outputs: 1. Analog Output
2. USB
Environmental: -1 °C to 43 °C (30°F to 110°F), 0-90% RH non-condensing
Meter Size: 4.5 X 3 X 1.2 inches; 115 X 72 X 30 mm
Probe Size:        1.2 Diameter X 2.5 inches; 31 X 63.5 mm
Probe Cable Length: 29 inches; 74 cm (detachable 6 pin mini din connector); 6′ option available
Weight: 5.5 oz
Power: 1. Battery 9 Volt Alkaline ~6 hour life (included)
2. External 9VDC Power adapter (included)
3. USB port (optional). When connected to a PC/Laptop power comes from the PC

Additional information






Voltage Measurement


NIST traceable

field type

DC Voltage

max range

±19999.9 V


0.1 V

Sensor Cable Length

29", 6'