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. 344-1195
Mfr. Part No.DPM 702S
BrandLascar
HK$710.47
Each
units
DC 3.5 LCD 32mm 62mm 8.5mm - - ±1 % Digits Only 0°C +50°C Voltmeter -
RS Stock No. 420-0557
Mfr. Part No.V 1
BrandLascar
HK$139.076
Each (In a Pack of 10)
units
DC 3.5 LCD 15mm 34mm - - - ±3 % Digits Only 0°C +50°C Voltmeter -
RS Stock No. 365-6252
Mfr. Part No.EMV 1200
BrandLascar
HK$355.03
Each
units
DC 3 LCD 44mm 21mm 9mm - - ±1 % Digits Only 0°C +50°C Voltmeter -
RS Stock No. 257-212
Mfr. Part No.DPM 125
BrandLascar
HK$310.86
Each
units
DC 3.5 LCD 22.2mm 45mm 9mm - - ±1 % Digits Only 0°C +50°C Voltmeter -
RS Stock No. 348-1238
Mfr. Part No.DPM 340
BrandLascar
HK$414.83
Each
units
DC 3.5 LED 18mm 38mm 13.6mm - - ±1 % Digits Only 0°C +50°C Voltmeter -
RS Stock No. 260-274
Mfr. Part No.DPM 400
BrandLascar
HK$307.08
Each
units
DC 3.5 LCD 45mm 22mm 9mm - - ±1 % Digits Only 0°C +50°C Voltmeter -
RS Stock No. 203-978
Mfr. Part No.DPM 950
BrandLascar
HK$503.52
Each
units
DC 3.5 LCD 40mm 72mm 8.4mm - - ±1 % Digits Only 0°C +50°C Voltmeter -
RS Stock No. 867-3126
Mfr. Part No.EMV 1025S-00
BrandLascar
HK$410.14
Each
units
DC 37259 LCD - 5.5mm 5.5mm - 12.5 mm ±0.1 % Digits Only 0°C 50°C Voltmeter -
RS Stock No. 446-2159
Mfr. Part No.DPM 750S-BL
BrandLascar
HK$383.96
Each
units
DC 3.5 LCD 32mm 62mm 9.5mm - - ±1 % Digits Only 0°C +50°C Voltmeter -
RS Stock No. 260-246
Mfr. Part No.DPM 700S-0
BrandLascar
HK$484.11
Each
units
DC 3.5 LCD 32mm 62mm 6.5mm - - ±1 % Digits Only 0°C +50°C Voltmeter -
RS Stock No. 255-963
Mfr. Part No.DPM 2000
BrandLascar
HK$354.87
Each
units
DC 3.5 LCD 36mm 72mm 9mm - - ±0.1 % Digits Only 0°C +50°C Voltmeter -
RS Stock No. 419-9340
Mfr. Part No.DPM 3AS-BL
BrandLascar
HK$395.35
Each
units
DC 3.5 LCD 18mm 38mm 13.6mm - - ±1 % Digits Only 0°C +50°C Voltmeter -
RS Stock No. 455-4450
Mfr. Part No.DPM 959B
BrandLascar
HK$530.36
Each
units
DC 3.5 LED 40mm 72mm 8.4mm - - 0.1 % Digits Only 0°C +50°C Voltmeter -
RS Stock No. 399-0192
Mfr. Part No.SP 100
BrandLascar
HK$241.69
Each
units
DC 3.5 LED 21.3mm 34mm 16mm - - ±1 % Digits Only 0°C +50°C Voltmeter -
RS Stock No. 223-199
Mfr. Part No.SP400-BLUE
BrandLascar
HK$331.99
Each
units
DC 3.5 LCD 21.3mm 34mm 16mm - - ±1 % Digits Only 0°C +50°C Voltmeter -
RS Stock No. 867-3132
Mfr. Part No.EMV 1025S-11
BrandLascar
HK$440.13
Each
units
DC 37259 LCD - 5.5mm 5.5mm - 12.5 mm ±0.1 % Digits Only 0°C 50°C Voltmeter -
RS Stock No. 419-9356
Mfr. Part No.EMV 1025S-01
BrandLascar
HK$294.95
Each
units
DC 3.5 LCD 44mm 21mm 9mm - - ±2 % Digits Only 0°C +50°C Voltmeter -
RS Stock No. 867-3072
Mfr. Part No.DPM 750S-EB-W
BrandLascar
HK$483.98
Each
units
DC 37259 LCD 32mm 62mm 7.7mm - 12.7 mm ±0.1 % Digits Only 0°C 50°C Voltmeter -
RS Stock No. 161-3503
Mfr. Part No.SGD 21-B
BrandLascar
HK$413.18
Each
units
DC 6 E -paper Dot Matrix - - 10.8mm 4 → 9 V dc - - - 0°C +40°C Voltmeter -
RS Stock No. 106-0031
Mfr. Part No.DPM 950S
BrandLascar
HK$549.77
Each
units
DC 3.5 LCD 40mm 72mm 8.4mm - - ±1 % Digits Only 0°C +50°C Voltmeter -