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. 798-3779
Mfr. Part No.DMK00R1
BrandLovato
HK$773.36
Each
units
AC 4 LED 45mm 92mm 105mm - - ±0.25 % Digits Only -20°C +60°C Voltmeter -
RS Stock No. 446-2159
Mfr. Part No.DPM 750S-BL
BrandLascar
HK$365.68
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$464.66
Each
units
DC 3.5 LCD 32mm 62mm 6.5mm - - ±1 % Digits Only 0°C +50°C Voltmeter -
RS Stock No. 901-0554
BrandRS PRO
HK$241.47
Each
units
DC - - 68mm 68mm 36.5mm - - ±1.5 % - -25°C +50°C Voltmeter CE, RoHS Compliant, TUV Certified, UL E327849
RS Stock No. 313-750
Mfr. Part No.D961MCS30V/2-001
BrandHOBUT
HK$394.69
Each
units
DC - - - - - - - - - -25°C +40°C Voltmeter -
RS Stock No. 221-2845
Mfr. Part No.DMS-20LCD-0-DCM-C
HK$250.72
Each
units
DC 3.5 LCD 21.29mm 33.93mm 15.8mm - - ±0.01 % Digits Only - - 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. 260-274
Mfr. Part No.DPM 400
BrandLascar
HK$304.04
Each
units
DC 3.5 LCD 45mm 22mm 9mm - - ±1 % Digits Only 0°C +50°C Voltmeter -
RS Stock No. 150-568
Mfr. Part No.PA213.009AX01
BrandBaumer
HK$799.31
Each
units
DC 3 LED 22mm 44mm - - - - Digits Only - - Voltmeter -
RS Stock No. 810-3407
Mfr. Part No.DMS-40LCD-0/1-5-C
HK$667.45
Each
units
DC 4.5 LCD 22.3mm 53.8mm 20.62mm - - - Digits Only 0°C +50°C Voltmeter -
RS Stock No. 348-1238
Mfr. Part No.DPM 340
BrandLascar
HK$383.35
Each
units
DC 3.5 LED 18mm 38mm 13.6mm - - ±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. 810-3390
Mfr. Part No.DMS-30PC-2-RL-C
HK$474.15
Each
units
DC 3.5 LED 22.3mm 53.8mm 20.62mm - - - Digits Only 0°C +60°C Voltmeter -
RS Stock No. 196-8626
Mfr. Part No.IS 11024
HK$704.93
Each
units
DC - - 93mm 124mm 30.2mm - - ±1.5 % - -25°C +55°C Voltmeter -
RS Stock No. 867-3126
Mfr. Part No.EMV 1025S-00
BrandLascar
HK$381.52
Each
units
DC 37259 LCD - 5.5mm 5.5mm - 12.5 mm ±0.1 % Digits Only 0°C 50°C Voltmeter -
RS Stock No. 163-6363
Mfr. Part No.DMS-30PC-0-RL-C
HK$480.70
Each
units
DC 3.5 LED 22.3mm 53.8mm 19.6mm - - ±2 % Digits Only 0°C +60°C Voltmeter -
RS Stock No. 533-4190
Mfr. Part No.906T24BNBGN
BrandCurtis
HK$448.96
Each
units
- - LED 31.2mm 53.2mm 28.8mm - - - - -40°C +85°C Battery Meter -
RS Stock No. 163-6559
Mfr. Part No.DMS-EB-RMS-C
HK$342.28
Each
units
- - - - - - - - - - - - Voltmeter -
RS Stock No. 163-6307
Mfr. Part No.DMS 30PC-1-RS-C
HK$447.55
Each
units
DC 3.5 LED 22.3mm 53.8mm 19.6mm - - ±2 % Digits Only 0°C +60°C Voltmeter -
RS Stock No. 903-3551
Mfr. Part No.DMS-20PC-3-RS-C
HK$359.39
Each
units
DC 3.5 LED 21.29mm 33.93mm 11.05mm - 9.4 mm ±3 % Digits Only 0°C 60°C Voltmeter RoHS Compliant
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