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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Part Details Brand Stock Indicator Type Magnetic Sensitivity Battery Type Audible Tone ATEX Approval Power Source Safety Category Dimensions Weight Diameter Height Length Maximum Detection Voltage Maximum Operating Temperature Model Number p Minimum Detection Voltage Width Safety Category Voltage Minimum Operating Temperature Safety Category Level
Beha-Amprobe Non Contact Voltage Detector >2.5mT 230V ac Beha-Amprobe 0 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 +40°C - - 23.5mm 1000V 0°C CAT IV
FLIR VP42 Non Contact Voltage Detector, 190V ac to 1000V ac Flir 0 - - AAA - - Battery, Mains CAT IV 1000 V 29 x 26 x 156mm 60g - 156mm 29mm 1000V ac +60°C VP42 190V ac 26mm 1000V 0°C CAT IV
Megger VF3 Non Contact Voltage & Magnetic Field Indicator With RS Calibration Megger 0 Voltage - AAA Yes - Battery CAT IV 600 V 178 x 26mm 48g - - 178mm - +50°C VF3 - 26mm 600V -10°C CAT IV
Megger VF3 Non Contact Voltage Indicator Megger 0 Voltage - AAA Yes - Battery CAT IV 600 V 178 x 26mm 48g - - 178mm - +50°C VF3 - 26mm 600V -10 CAT IV
RS PRO Magnetic Field Detector 0.3mT 1000V ac RS Pro 1046 Magnetic Field 0.3mT AAA - - Battery CAT III 1000 V 17 (Dia.) x 152mm 40g 17mm - 152mm 1000V ac +50°C - - - 1000V -10°C CAT III
Fluke 2AC Non Contact Voltage Detector, 90V ac to 1000V ac
  • RS Stock No. 741-4355
  • Brand Fluke
  • Mfr. Part No. FLK2AC/90-1000V
Fluke 515 Voltage - AAA - - Battery CAT IV 1000 V - 45.4g - - - 1000V ac +50°C 2AC 90V ac - 1000V -10°C CAT IV
RS PRO ATEX Magnetic Field Detector 0.3mT RS Pro 356 Magnetic Field 0.3mT AAA, GP Alkaline GN24A LR03 Size AAA - Yes Battery - - 40g - - - - +40°C ATEX - - - -20°C -
RS PRO Non Contact Voltage Indicator, 230V ac to 1000V ac RS Pro 250 Voltage - AAA, GP Alkaline GN24A LR03 Size AAA - Yes Battery CAT III 1000 V ac 18 (Dia.) x 151mm 50g 18mm - 151mm 1000V ac +40°C - 230V ac - 1000V ac -20°C CAT III
RS PRO MP-1 Non Contact Voltage Indicator, 600V to 1000V RS Pro 245 Magnetic Probe, Magnetic Probe Tip - - - - - CAT II 1000 V, CAT III 600 V, CAT IV 300 V - - - - - 1000V +50°C MP-1 600V - 300 V, 600 V, 1000 V -10°C CAT II, CAT III, CAT IV
RS PRO RS VP-3 Non Contact Voltage Indicator, 200V ac to 1000V ac RS Pro 169 Non Contact Voltage - 1.5 V, AAA, NEDA 24A, IEC LR 03 Yes - Battery CAT III 1000 V - - - - - 1000V ac - RS VP-3 200V ac - 1000V - CAT III
RS PRO IVP-1 Non Contact Voltage Detector, 100V ac to 1000V ac RS Pro 163 Non Contact Voltage - AAA - - Battery CAT III 1000 V / CAT IV 600 V, CAT IV, CAT lll 152 x 22 x 18mm 40 (with Battery)g - 18mm 152mm 1000V ac +40°C IVP-1 100V ac 22mm 1000V 0°C CAT IV
Fluke LVD1A Non Contact Voltage Detector Fluke 152 - - AAA - - Battery - - - - - - - +50°C LVD1A - - - 0°C -
RS PRO Volt-Stick SOUND Non Contact Voltage Detector, 230V ac to 1000V ac RS Pro 135 Voltage - AAA Yes - Battery CAT III 1000 V 17 (Dia.) x 146mm 40g 17mm - 146mm 1000V ac +50°C Volt-Stick SOUND 230V ac - 1000V -10°C CAT III
RS PRO RS VP-4 Non Contact Voltage Indicator, 100V ac to 1000V ac RS Pro 102 Non Contact Voltage - 1.5 V, AAA - - Battery CAT IV 1000 V - - - - - 1000V ac +50°C RS VP-4 100V ac - 1000V 0°C CAT IV
RS PRO Volt-Stick PRO Non Contact Voltage Detector, 230V ac to 1000V ac RS Pro 67 Voltage - AAA - - Battery CAT III 1000 V 18 (Dia.) x 146mm 40g 18mm - 146mm 1000V ac +50°C Volt-Stick PRO 230V ac - 1000V -10°C CAT III
Martindale TEK 200 Magnetic Field Detector ±10mT, 100V ac to 600V ac Martindale 61 Magnetic Field, Voltage ±10mT 9V Yes - Battery CAT III 1000 V, CAT IV 600 V 32 x 22 x 202mm 150g - 202mm 32mm 600V ac +50°C TEK 200 100V ac 22mm 600 V, 1000 V 0°C CAT III, CAT IV
FLIR VP52 Non Contact Voltage Indicator, 24 V, 90 V to 1000V Flir 52 Non Contact Voltage - AAA - - Battery CAT IV 1000 V - - - - - 1000V - VP52 24 V, 90 V - 1000V - CAT IV
Martindale VT3 Non Contact Voltage Detector ±10mT, 200V ac to 1000V ac Martindale 48 Magnetic Field, Voltage ±10mT AAA - - Battery CAT III 1000 V 19 (Dia.) x 170mm 73.6g 19mm - 170mm 1000V ac - VT3 200V ac - 1000V - CAT III
Fluke 2AC Non Contact Voltage Detector, 200V ac to 1000V ac
  • RS Stock No. 741-4346
  • Brand Fluke
  • Mfr. Part No. FLK2AC/200-1000VCL
Fluke 46 Voltage - AAA - - Battery CAT IV 1000 V - - - 148mm - 1000V ac +50°C 2AC 200V ac - 1000V -10°C CAT IV
Martindale TEK 100 Non Contact Voltage Detector, 100V ac to 600V ac Martindale 31 Voltage - 9V Yes - Battery CAT III 1000 V, CAT IV 600 V 32 x 22 x 202mm 140g - 202mm 32mm 600V ac +50°C TEK 100 100V ac 22mm 1000 V, 600 V 0°C CAT III, CAT IV
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