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. 446-2137
Mfr. Part No.OEM 1B-LED
BrandLascar
SGD41.37
Each
units
DC 3.5 LED 16.4mm 23.4mm 5.5mm - - ±1 % Digits Only 0°C +50°C Voltmeter -
RS Stock No. 255-963
Mfr. Part No.DPM 2000
BrandLascar
SGD74.03
Each
units
DC 3.5 LCD 36mm 72mm 9mm - - ±0.1 % Digits Only 0°C +50°C Voltmeter -
RS Stock No. 446-2121
Mfr. Part No.OEM 1B
BrandLascar
SGD39.95
Each
units
DC 3.5 LCD - - 5.5mm - - ±1 % Digits Only 0°C +50°C Voltmeter -
RS Stock No. 419-9384
Mfr. Part No.V 125
BrandLascar
SGD175.50
Each (In a Pack of 10)
units
DC 3.5 LCD 45mm 21.5mm - - - ±3 % Digits Only 0°C +50°C Voltmeter -
RS Stock No. 455-4450
Mfr. Part No.DPM 959B
BrandLascar
SGD86.82
Each
units
DC 3.5 LED 40mm 72mm 8.4mm - - 0.1 % Digits Only 0°C +50°C Voltmeter -
RS Stock No. 260-268
Mfr. Part No.DPM 116
BrandLascar
SGD72.48
Each
units
DC 3.5 LCD 22.2mm 45mm 9mm - - ±1 % Digits Only 0°C +50°C Voltmeter -
RS Stock No. 867-3066
Mfr. Part No.EMV 1200-40
BrandLascar
SGD53.89
Each
units
DC 3 LCD - 5.5mm - - 12.5 mm ±0.4 % Digits Only 0°C +50°C Voltmeter -
RS Stock No. 420-0557
Mfr. Part No.V 1
BrandLascar
SGD161.80
Each (In a Pack of 10)
units
DC 3.5 LCD 15mm 34mm - - - ±3 % Digits Only 0°C +50°C Voltmeter -
RS Stock No. 419-9340
Mfr. Part No.DPM 3AS-BL
BrandLascar
SGD59.52
Each
units
DC 3.5 LCD 18mm 38mm 13.6mm - - ±1 % Digits Only 0°C +50°C Voltmeter -
RS Stock No. 260-252
Mfr. Part No.DPM 500S
BrandLascar
SGD87.23
Each
units
DC 3.5 LCD 27mm 57mm 8.2mm - - ±1 % Digits Only 0°C +50°C Voltmeter -
RS Stock No. 257-206
Mfr. Part No.DPM 40
BrandLascar
SGD92.52
Each
units
DC 3.5 LED 33mm 68mm 10.6mm - - ±1 % Digits Only 0°C +50°C Voltmeter -
RS Stock No. 348-1238
Mfr. Part No.DPM 340
BrandLascar
SGD59.67
Each
units
DC 3.5 LED 18mm 38mm 13.6mm - - ±1 % Digits Only 0°C +50°C Voltmeter -
RS Stock No. 455-4494
Mfr. Part No.EM 32-1B-LED
BrandLascar
SGD69.21
Each
units
DC 3.5 LED - - - - - ±1 % Digits Only 0°C +50°C Voltmeter -
RS Stock No. 399-0192
Mfr. Part No.SP 100
BrandLascar
SGD41.37
Each
units
DC 3.5 LED 21.3mm 34mm 16mm - - ±1 % Digits Only 0°C +50°C Voltmeter -
RS Stock No. 399-0215
Mfr. Part No.SP 300
BrandLascar
SGD54.48
Each
units
DC 3.5 LED 21.3mm 34mm 16mm - - ±1 % Digits Only 0°C +50°C Voltmeter -
RS Stock No. 260-274
Mfr. Part No.DPM 400
BrandLascar
SGD53.47
Each
units
DC 3.5 LCD 45mm 22mm 9mm - - ±1 % Digits Only 0°C +50°C Voltmeter -
RS Stock No. 255-979
Mfr. Part No.DPM 700
BrandLascar
SGD82.85
Each
units
DC 3.5 LCD 32mm 62mm 6.5mm - - ±1 % Digits Only 0°C +50°C Voltmeter -
RS Stock No. 419-9334
Mfr. Part No.DPM 2AS-BL
BrandLascar
SGD52.10
Each
units
DC 3.5 LCD 15mm 33mm 13.6mm - - ±1 % Digits Only 0°C +50°C Voltmeter -
RS Stock No. 419-9356
Mfr. Part No.EMV 1025S-01
BrandLascar
SGD41.72
Each
units
DC 3.5 LCD 44mm 21mm 9mm - - ±2 % Digits Only 0°C +50°C Voltmeter -
RS Stock No. 255-985
Mfr. Part No.DPM 500
BrandLascar
SGD56.66
Each
units
DC 3.5 LCD 27mm 57mm 8.2mm - - ±1 % Digits Only 0°C +50°C Voltmeter -