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.


...
Read more Read less

Filters

Viewing 41 - 41 of 41 products
Results per page
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
RS Stock No. 146-8046
Mfr. Part No.37872
BrandWiha Tools
£18.94
Each
Units
Non Contact Voltage - AAA - - - Battery CAT III 1000 V ac - 76g 4.2mm - 149mm 230 → 1000V ac
Related Products
Patented technology locates the centre and edges of ...
Description:
Patented technology locates the centre and edges of wood or metal studs behind non metallic walls, floors, or ceilingsCenterVision™ Technology finds the stud centre in one passBacklit LCD screen with easy-to-understand on-screen graphics and audio signal indicate target Dual-sensitivity scanning—Normal mode up to 19mm ( 3//4 in.) or DeepScan® up ...
Ground-Fault Circuit Interrupter is a low-power controller for ...
Description:
Ground-Fault Circuit Interrupter is a low-power controller for AC-receptacle, that detect hazardous current paths to ground and ground to neutral faults. The circuit interrupter then disconnects the load from the mains power line before a harmful or lethal shock occurs. Ground Fault InterrupterEarth Leakage DetectorRequire less adjusting and calibrating.
With a voltage range of up to 1000V ...
Description:
With a voltage range of up to 1000V ac the Testo 745 can fast check suspected faults. Clear visual and acoustic signals warn of alternating current enabling user verification quickly.Reliability is also increased with the high-frequency interference signals filter. Designed for ease of use, reliability and durability this non-contact tester ...
The DA-9 series reed switches utilise a magnetic ...
Description:
The DA-9 series reed switches utilise a magnetic sensor for pneumatic actuators. They come with built in indicator lights and set screws. For extra versatility they are available in both two and three wire options in both in-line and vertical entry configurations.Possible Applications:Automotive/Heavy VehicleFood/BeverageForestry/Paper ProductsMaterial ... SciencesResource. Voltage Rating: 5Vdc ...