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Martindale NC4 Dual Sensitivity Non-contact Voltage Tester

The NC4 voltage tester has two sensitivity ranges for accurately detecting the presence of AC voltages.

Next Day Delivery (subject to availability)

£18.95 excluding VAT £22.74 including VAT @ 20% Regular Price: £32.40
  • Clear Transparent Tip
  • Dual Sensitivity
  • LED Indication
  • Up to 1000V ac
  • Non-Contact
  • Audible And Visual Detection
  • CAT IV 1000V Rated
  • Description
  • Resources
  • Delivery

Martindale NC4 Dual Sensitivity Non-contact Voltage Tester

The NC4 voltage tester has two sensitivity ranges for accurately detecting the presence of AC voltages. The first will detect voltages between 50V and 1000V and the second will indicate voltages between 12V and 1000V. Sensitivity can be set according to the application and when in high sensitivity mode the LED pulse double flashes.

The extended probe tip gives improved access and easier identification of live wiring. It indicates voltage by illuminating the clear tip section with a bright red LED and sounding a buzzer.

The pen-shaped design with clip makes it ideal for carrying in a pocket or tool belt when working at height or in difficult to access locations. There is a useful LED torch which illuminates the area directly in front of the tip. Auto power off and a recessed on button ensure a long battery lifetime and the NC4 functionality also includes low battery indication.

The NC4 replaces the Martindale VT4.

Key Features:

  • Single and dual function models
  • Audible and visual indication
  • Extended probe for easy access
  • Clear tip for high visibility
  • LED torch for illuminating the test area
  • Power on LED pulse and low battery indication

More about the NC Series Testers:

The NC Series of non-contact testers can be used for reliable voltage and magnetic field detection. Voltage testing has been optimized for 230V systems with dual sensitivity available on the NC4.
The non-contact magnetic field detection capabilities of the NC1 and NC3 can be used for checking the operation of relays and solenoid valves in a wide range of machinery. This feature saves time by allowing testing without having to dismantle the equipment or control panel.
All models feature an extended clear tip with bright LED indication making it easy to identify the source.
The pen shape with clip makes it ideal for carrying in a pocket or toolbelt and a built-in torch in the tip aids use in low light areas.

Additional features NC1 and NC3

  • Yellow LED for magnetic field detection
  • Easy testing of solenoid valves and relays without dismantling equipment



NC Series Selector



 CAT 1V 1000V 

ISSWWW and Martindale Electric

Founded in 1928 and also owns Edgcumbe Instruments Metrohm® products, as well as the John Drummond Engineers range of test lamps.
They are a British owned company, based in Watford, just 5 minutes from junction 5 of the M1. Their product range helps electricians and maintenance engineers carry out portable appliance testing, check fixed wiring for 17th Edition and Part P testing, safely prove dead, and measure everything from light and sound levels to microwave leakage and power consumption. We are proud to be able to offer Martindale's products and services and have done so for many years.

Standard FREE 3-5 Day Courier Delivery – UK Mainland only - Zones A & B
Included in the price for all orders over £40.00 (exc vat). Sent using express courier, delivered within 3-5 working days from the date of your order, subject to availability.

Standard 1-2 Day Express Courier Delivery – UK Mainland only - Zones A & B
£4.50 for all all orders under £40.00 (exc vat). Sent by express courier, delivered within 1-2 working days from the date of your order, subject to availability.

Express Courier 1-2 Day Delivery – UK Mainland only - Zones A & B
£4.50 select at the checkout. Sent using express courier.

Next Day Delivery – UK Mainland only - Zones A & B
£8.00 select at the checkout. Sent using express courier, orders must be placed before 3pm for next day delivery, subject to availability.

Saturday Pre 12am - UK Mainland only - Zones A & B
£15.00 select at the checkout. Sent using express courier, orders must be placed before 3pm for Saturday delivery.

Orders must be placed before 3pm for next day delivery and a telephone number supplied, subject to availability.
Please note that predicted delivery times are based on regular trading days Monday to Friday. Public holidays, bank holidays and weekends are outside the usual scope of our dispatch and therefore may incure additional days lead time to your order.

Orders requiring calibration. Whilst we take the greatest care to get all orders dispatched and delivered to you in the stated time frame, orders received late afternoon and requiring calibration may on occasion miss dispatch that day, according to the complexity of the calibration. Be assured they will ship on the next dispatch, this in most cases should not add more than 24 hours to you delivery.

Delivery Surcharges
Because of the high cost of carriage we need to apply a surcharge on all deliveries made in the following regions bringing the carriage charges to:

  • Zones A & B  - Mainland delivery rates apply. 
  • Zone C - Scottish Highlands. 
  • Zone D - Outer Hebrides, Orkney Isles, Shetland Isles, Isle of Man, Scilly Isles, and Channel Islands.
  • Zone E - Northern Ireland
  • Zone F - Republic of Ireland

New Postage Map Sept 2018> 

International delivery

International delivery charges are automatically added to your order at the checkout; you can also use the guide below for a guide on prices. For any questions regarding international deliveries please contact us at sales@isswww.co.uk

If no shipping option is available to your selected country please call us on +44 (0) 1603 406 148 to purchase your items.