Voltmeters

Voltmeters are instruments that measure the voltage, or potential deviation, between two points in an electrical circuit. Voltmeters are panel mounted devices that can display with either an analogue or digital display. Analogue panel voltmeters have a pointer that moves along a scale proportional to the voltage level. Digital panel voltmeters measure the potential deviation in the same way and display this with a digital readout.

What are voltmeters used for?

Voltmeters can measure voltage levels in generators or fixed machinery. They're commonly used in chemical processing plants where pressure, temperature or fluid-flow readings can be converted into voltage measurements.

Types of Analogue Voltmeters

  • Moving coil voltmeters have either permanent magnets or dynamometers as measuring components with low power consumption benefits.
  • Moving iron voltmeters can measure both AC and DC currents by producing a deflective torque. The torque-to-weight ratio is high which means increased accuracy of readings.
  • Electrostatic voltmeters measure current flow based on attracting, repulsion or symmetry between two electrically charged plates. Their benefits is the high voltage range capacity of 200KV.

Types of Digital Voltmeters

Digital panel voltmeters have a number of different parameters such as supply voltage and meter accuracy. Typical mounting options include 12-pin DIPs and traditional bezel mounts. Digital screen options include a range of red, blue or green LED or LCD display units to suit your needs under different lighting conditions. Housings can be circular, square or rectangular.


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Description Price Current Type Number of Digits Display Type Cutout Height Cutout Width Depth Supply Voltage Digit Height Meter Accuracy Analogue Effect Minimum Temperature Maximum Temperature Meter Type Approvals
RS Stock No. 136-5389
BrandRS PRO
£38.24
Each
Units
AC 4 LED 92mm 92mm 55mm - 14 mm ±0.5 + 1 Digit % Digits Only 0°C +50°C Voltmeter IEC 60529, IEC 61010-1:2001, IEC 61326-1:2005
RS Stock No. 180-9263
BrandRS PRO
£43.78
Each
Units
- - LED 39mm 43mm 49mm - - - - -20°C +85°C Battery Meter CE Certified
RS Stock No. 815-8302
Mfr. Part No.APM-VOLT-ANN
BrandTrumeter
£42.34
Each
Units
AC, DC 4 LCD 68mm 68mm 53mm 12 → 24 V ac/dc - 1 % Simulated Analogue Display -10°C +60°C Voltmeter -
RS Stock No. 455-4450
Mfr. Part No.DPM 959B
BrandLascar
£56.08
Each
Units
DC 3.5 LED 40mm 72mm 8.4mm - - 0.1 % Digits Only 0°C +50°C Voltmeter -
RS Stock No. 815-8299
Mfr. Part No.APM-VOLT-APN
BrandTrumeter
£42.34
Each
Units
AC, DC 4 LCD 68mm 68mm 53mm 12 → 24 V ac/dc - 1 % Simulated Analogue Display -10°C +60°C Voltmeter -
RS Stock No. 244-913
Mfr. Part No.F3PAM12V/1
BrandHOBUT
£13.74
Each
Units
- - - - - - - - ±8 % - -20°C +40°C Battery Meter -
RS Stock No. 365-6252
Mfr. Part No.EMV 1200
BrandLascar
£25.95
Each
Units
DC 3 LCD 44mm 21mm 9mm - - ±1 % Digits Only 0°C +50°C Voltmeter -
RS Stock No. 810-3321
Mfr. Part No.DMR20-10-DCM-R-C
£36.86
Each
Units
DC 4 LED - 30.73mm 27.4mm - - ±0.06 V, ±0.4 V Digits Only -25°C +60°C Voltmeter -
RS Stock No. 419-9356
Mfr. Part No.EMV 1025S-01
BrandLascar
£21.95
Each
Units
DC 3.5 LCD 44mm 21mm 9mm - - ±2 % Digits Only 0°C +50°C Voltmeter -
RS Stock No. 221-2845
Mfr. Part No.DMS-20LCD-0-DCM-C
£24.00
Each
Units
DC 3.5 LCD 21.29mm 33.93mm 15.8mm - - ±0.01 % Digits Only - - Voltmeter -
RS Stock No. 455-4494
Mfr. Part No.EM 32-1B-LED
BrandLascar
£37.45
Each
Units
DC 3.5 LED - - - - - ±1 % Digits Only 0°C +50°C Voltmeter -
RS Stock No. 399-0186
Mfr. Part No.SP 400
BrandLascar
£21.95
Each
Units
DC 3.5 LCD 21.3mm 34mm 16mm - - ±1 % Digits Only 0°C +50°C Voltmeter -
RS Stock No. 163-8814
Mfr. Part No.PM-2/10V
BrandMonacor
£17.98
Each
Units
DC - - - - 23mm - - - - - - Voltmeter -
RS Stock No. 244-929
Mfr. Part No.F3PAM24V/2
BrandHOBUT
£14.48
Each
Units
- - - - - - - - ±8 % - -20°C +40°C Battery Meter -
RS Stock No. 392-8298
Mfr. Part No.9600100000B
£25.45
Each
Units
DC - - 92mm 92mm 53mm - - Class 1.5 - - +23°C Voltmeter -
RS Stock No. 533-4207
Mfr. Part No.906T12BNBGN
BrandCurtis
£42.90
Each
Units
- - LED 31.2mm 53.2mm 28.8mm - - - - - - Battery Meter -
RS Stock No. 815-8309
Mfr. Part No.APM-VOLT-APO
BrandTrumeter
£86.27
Each
Units
AC, DC 4 LCD 68mm 68mm 53mm 12 → 24 V ac/dc - 1 % Simulated Analogue Display -10°C +60°C Voltmeter -
RS Stock No. 254-9125
Mfr. Part No.DMS-20PC-1-DCM-C
£40.95
Each
Units
DC 3.5 LED 21.29mm 33.93mm 24.4mm - - ±0.01 % Digits Only - +60°C Voltmeter -
RS Stock No. 810-3334
Mfr. Part No.DMS-20LCD-0-9-C
£27.62
Each
Units
DC 3.5 LCD 21.29mm 33.93mm 17.2mm - - - Digits Only 0°C +60°C Voltmeter -
RS Stock No. 312-915
Mfr. Part No.D96SD500V/2-001
BrandHOBUT
£23.26
Each
Units
AC - - 92mm 92mm - - - - - -25°C +40°C Voltmeter -