Voltmeters

Voltmeters are instruments that are used in electrical circuitry to measure the voltage, or potential deviation, between two points in an electrical circuit. Voltmeters are panel mounted devices that can display results in either an analogue or digital display format. Analogue voltmeters have a pointer that moves along a scale proportional to the voltage level whereas digital voltmeters measure the potential deviation in the same way and display this with a digital readout.At RS Components, we have curated a wide range of voltmeters from leading brands in the industry, including HOBUT, Lascar, Murata Power Solutions, Sifam Tinsley, RS PRO and many more. Our range includes voltmeters suitable for AC and DC, with various supply voltage and meter accuracy options available.

What are voltmeters used for?

Voltmeters are used in a wide range of applications of industries as their function of measuring voltage levels can be beneficial in many different environments, such as measuring the voltage in generators or fixed machinery. They're also commonly used in chemical processing plants where pressure, temperature or fluid-flow readings can be converted into voltage measurements.

How do I connect a voltmeter?

As a voltmeter is used to measure any potential difference is should always be connected in parallel in your circuit. This is important because objects in parallel encounter the same potential difference.

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 are the high voltage range capacity of 200KV.

Types of Digital Voltmeters

Digital panel voltmeters have several 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. 810-3340
Mfr. Part No.DMS-20LCD-1-DCM-C
€29.17
Each
units
DC 3 LCD 21.29mm 33.93mm 16.8mm - - ±0.2 V Digits Only 0°C +60°C Voltmeter -
RS Stock No. 163-6199
Mfr. Part No.DMS-30PC-0-GS-C
€62.19
Each
units
DC 3.5 LED 22.3mm 53.8mm 19.6mm - - ±2 % Digits Only 0°C +60°C Voltmeter -
RS Stock No. 810-3321
Mfr. Part No.DMR20-10-DCM-R-C
€45.35
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. 254-9125
Mfr. Part No.DMS-20PC-1-DCM-C
€50.38
Each
units
DC 3.5 LED 21.29mm 33.93mm 24.4mm - - ±0.01 % Digits Only - +60°C Voltmeter -
RS Stock No. 810-3324
Mfr. Part No.DMR20-1-ACV-R-C
€49.37
Each
units
AC 4 LED - 30.73mm 29.9mm - - ±2 V Digits Only -25°C +60°C Voltmeter -
RS Stock No. 163-6559
Mfr. Part No.DMS-EB-RMS-C
€43.87
Each
units
- - - - - - - - - - - - Voltmeter -
RS Stock No. 810-3330
Mfr. Part No.DMS-20LCD-1-5-C
€34.98
Each
units
DC 3.5 LCD 21.29mm 33.93mm 17.2mm - - - Digits Only 0°C +60°C Voltmeter -
RS Stock No. 221-2845
Mfr. Part No.DMS-20LCD-0-DCM-C
€29.52
Each
units
DC 3.5 LCD 21.29mm 33.93mm 15.8mm - - ±0.01 % Digits Only - - Voltmeter -
RS Stock No. 176-4171
Mfr. Part No.DMS-20PC-1-LM-C
€56.43
Each
units
AC 3.5 LED 21.29mm 33.93mm 17.45mm - - - Digits Only - - Voltmeter -
RS Stock No. 903-3582
Mfr. Part No.DMS-20PC-2-LM-C
€64.48
Each
units
AC 3 LED 21.29mm 33.93mm 24.38mm - 9.4 mm ±2 V Digits Only -25°C +60°C Voltmeter CRUus, CUL, IEC, RoHS Compliant, UL
RS Stock No. 903-3563
Mfr. Part No.DMS-20PC-8-DCM-C
€50.38
Each
units
DC 3.5 LED - - - - 9.4 mm ±0.1 V Digits Only -25°C +60°C Voltmeter -
RS Stock No. 810-3365
Mfr. Part No.DMS-20PC-1-DCM-B-C
€67.94
Each
units
DC 3, 3.5 LED 21.29mm 33.93mm 25.4mm - - ±0.2 V Digits Only -25°C +60°C Voltmeter -
RS Stock No. 903-3557
Mfr. Part No.DMS-20PC-0-DCM-B-C
€67.94
Each
units
DC 3.5 LED - - - - 9.4 mm ±0.01 % Digits Only -25°C +60°C Voltmeter -
RS Stock No. 810-3359
Mfr. Part No.DMS-20PC-0-BS-C
€54.84
Each
units
DC 3.5 LED 21.29mm 33.93mm 18.47mm - - - Digits Only 0°C +60°C Voltmeter -
RS Stock No. 163-6313
Mfr. Part No.DMS-30PC-2-RS-C
€62.19
Each
units
DC 3.5 LED 22.3mm 53.8mm 19.6mm - - ±2 % Digits Only 0°C +60°C Voltmeter -
RS Stock No. 111-5864
Mfr. Part No.DMR20-1-FM-R-C
€42.77
Each
units
AC 4 LED - 30.73 (Dia.)mm 2.5mm - 7.6 mm ±0.02 Hz Digits Only -25°C +60°C Voltmeter CUL, IEC 61010-1, UL Listed
RS Stock No. 810-3343
Mfr. Part No.DMS-20LCD-1-9-C
€32.90
Each
units
DC 3.5 LCD 21.29mm 33.93mm 17.2mm - - - Digits Only 0°C +60°C Voltmeter -
RS Stock No. 903-3579
Mfr. Part No.DMS-30LCD-1-5B-C
€54.84
Each
units
DC 3.5 LCD 22.3mm 53.80mm 13.2mm - 10.2 mm ±2 % Digits Only 0°C +60°C Voltmeter RoHS Compliant
RS Stock No. 254-9119
Mfr. Part No.DMS-20PC-0-DCM-C
€50.38
Each
units
- 3.5 LED 33.93mm 21.29mm - - - - Digits Only - +60°C Voltmeter -
RS Stock No. 111-5868
Mfr. Part No.DMR20-1-TMP-R-C
€44.91
Each
units
- 4 LED - 30.73 (Dia.)mm 2.5mm - 7.6 mm ±1 (Typ.) °F Digits Only -25°C +60°C Voltmeter UL Listed