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 Audible Tone ATEX Approval Power Source Safety Category Weight Diameter Height Length Maximum Detection Voltage Maximum Operating Temperature Minimum Detection Voltage
RS Stock No. 719-0888
Mfr. Part No.TEK100
BrandMartindale
MYR240.13
Each
units
Voltage - 9V Yes - Battery CAT III 1000 V, CAT IV 600 V 140g - 202mm 32mm 600V ac +50°C 100V ac
RS Stock No. 788-4606
Mfr. Part No.RSVT7
BrandMartindale
MYR156.09
Each
units
Voltage - 9V - - Battery CAT III 600 V, CAT IV 300 V 120g - 33mm 236mm 600V ac +50°C -
RS Stock No. 897-7144
Mfr. Part No.MARTEK101
BrandMartindale
MYR270.14
Each
units
Voltage - 9V Yes No Battery CAT IV 1000 V 120g - 25mm 202mm 600V ac +40°C 180V ac
RS Stock No. 192-0592
Mfr. Part No.NC3
BrandMartindale
MYR174.10
Each
units
Voltage >10mT AAA Yes - Battery CAT IV 1000V 55g - 27mm 158mm 1000V ac +40°C 200V ac
RS Stock No. 719-0876
Mfr. Part No.RSTEK200
BrandMartindale
MYR300.69
Each
units
Magnetic Field, Voltage ±10mT 9V Yes - Battery CAT III 1000 V, CAT IV 600 V 150g - 202mm 32mm 600V ac +50°C 100V ac
RS Stock No. 192-0590
Mfr. Part No.NC1
BrandMartindale
MYR120.07
Each
units
Voltage >10mT AAA Yes - Battery CAT IV 1000V 55g - 27mm 158mm 1000V ac +40°C -
RS Stock No. 192-0591
Mfr. Part No.NC2
BrandMartindale
MYR114.07
Each
units
Voltage >10mT AAA Yes - Battery CAT IV 1000V 55g - 27mm 158mm 1000V ac +40°C 200V ac
RS Stock No. 192-0593
Mfr. Part No.NC4
BrandMartindale
MYR162.09
Each
units
Voltage - AAA Yes - Battery CAT IV 1000V 55g - 27mm 158mm 1000V ac +40°C 12V ac