Non Contact Voltage & Magnetic Field Indicators

Non-contact voltage detectors are a highly reliable and safe way to detect live wires and conductors without coming into contact with them. They can be used in a wide range of environments due to their compact and portable design, making them perfect for working on the go.

Non-contact voltage & magnetic field indicators feature a wide range of features to enhance the user experience, making it easier to identify live currents and magnetic fields. LED lights are often included to indicate when the device is in contact with a live voltage, in some cases this is also accompanied with a beeping noise.

How do they work?

Also known as a voltage detector, voltage tester pens, sensors or test pens. They allow the user to test electrical conductors without touching them. Non-contact testers are the safest and easiest way to detect electric fields or voltage. Voltage testers utilise what is called capacitive coupling, the user holding the instrument provides a ground reference. The tester then detects changing electric field around the object or objects conducting an AC current (Alternating current). Simply put, the user and the tester pen when near the electrical conductor will cause a small current to flow through the tester from the source, this is how it detects AC voltage.

At RS, we offer a wide range of reliable non-contact voltage testers suitable for DIY enthusiasts at home to electrical engineers. The user-friendly devices ensure quick and efficient testing of voltage in a range of applications and can be used by anyone from a homeowner carrying out renovations to an electrical engineer.


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Description Price Indicator Type Magnetic Sensitivity Battery Type Calibrated Audible Tone ATEX Approval Power Source Safety Category Dimensions Weight Diameter Height Length Maximum Detection Voltage
New
RS Stock No. 192-0601
Mfr. Part No.NC4
BrandMartindale
€82.00
Each
units
Non Contact Voltage >10mT 1.5V AAA Alkaline - Yes - Battery CAT IV 1000V 158 x 20 x 27mm 55g - 27mm 158mm 1000V ac
RS Stock No. 146-8046
Mfr. Part No.37872
BrandWiha Tools
€23.68
Each
units
Non Contact Voltage - AAA - - - Battery CAT III 1000 V ac - 76g 4.2mm - 149mm 230 → 1000V ac
New
RS Stock No. 192-0591
Mfr. Part No.NC2
BrandMartindale
€23.50
Each
units
Non Contact Voltage >10mT 1.5V AAA Alkaline - Yes - Battery CAT IV 1000V 158 x 20 x 27mm 55g - 27mm 158mm 1000V ac
RS Stock No. 181-5013
Mfr. Part No.2004-780
BrandMegger
€22.00
Each
units
Voltage - AAA - Yes - Battery CAT IV 600 V 178 x 26mm 48g - - 178mm -
RS Stock No. 186-5507
Mfr. Part No.NCV-1040-EUR
€45.50
Each
units
Non Contact Voltage >2.5mT AAA - Yes - Battery CAT IV 1000 V 156.2 x 23.5 x 27.5mm 62g - 27.5mm 156.2mm 230V ac
New
RS Stock No. 192-0592
Mfr. Part No.NC3
BrandMartindale
€35.50
Each
units
Non Contact Voltage >10mT 1.5V AAA Alkaline - Yes - Battery CAT IV 1000V 158 x 20 x 27mm 55g - 27mm 158mm 1000V ac
RS Stock No. 732-4732
Mfr. Part No.TKED 1
BrandSKF
€581.62
Each
units
- - AAA - - - - - 250 x 210 x 60mm 104g - 60mm 250mm -
New
RS Stock No. 192-0597
Mfr. Part No.NC2
BrandMartindale
€72.50
Each
units
- - - - - - - - - - - - - -
RS Stock No. 175-4980
Mfr. Part No.VP52
BrandFLIR
€35.00
Each
units
Non Contact Voltage - AAA - - - Battery CAT IV 1000 V - - - - - 1000V
RS Stock No. 185-3516
Mfr. Part No.VP42
BrandFLIR
€25.00
Each
units
- - AAA - - - Battery, Mains CAT IV 1000 V 29 x 26 x 156mm 60g - 156mm 29mm 1000V ac
RS Stock No. 181-5039
Mfr. Part No.2004-780
BrandMegger
€71.00
Each
units
Voltage - AAA RSCAL Yes - Battery CAT IV 600 V 178 x 26mm 48g - - 178mm -
New
RS Stock No. 192-0593
Mfr. Part No.NC4
BrandMartindale
€33.00
Each
units
Non Contact Voltage >10mT 1.5V AAA Alkaline - Yes - Battery CAT IV 1000V 158 x 20 x 27mm 55g - 27mm 158mm 1000V ac
New
RS Stock No. 192-0590
Mfr. Part No.NC1
BrandMartindale
€24.50
Each
units
Non Contact Voltage >10mT 1.5V AAA Alkaline - Yes - Battery CAT IV 1000V 158 x 20 x 27mm 55g - 27mm 158mm -
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