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Extech 480826 Triple Axis EMF Tester

480826 Triple Axis EMF Tester is designed to provide a quick, reliable and easy way to measure electromagnetic field radiation levels around power lines, electrical appliances and industrial devices

Next Day Delivery (subject to availability)

£226.50 excluding VAT £271.80 including VAT @ 20% Regular Price: £332.09
  • Batteries Included
  • 3 Axis
  • Wide bandwidth from 30Hz to 300Hz
  • Measures EMF in both μTesla and mGauss
  • FreeDelivery
  • 30DayMoneyBack
  • Description
  • Features & Specification
  • Resources
  • Delivery

Extech 480826 Triple Axis EMF Tester

EMF measurements are measurements of ambient (surrounding) electromagnetic fields that are performed using particular sensors or probes, such as EMF meters. These probes can be generally considered as antennas although with different characteristics. In fact probes should not perturb the electromagnetic field and must prevent coupling and reflection as much as possible in order to obtain precise results. There are two main types of EMF measurements:

  • Broadband measurements performed using a broadband probe, that is a device which senses any signal across a wide range of frequencies and is usually made with three independent diode detectors;
  • Frequency selective measurements in which the measurement system consists of a field antenna and a frequency selective receiver or spectrum analyzer allowing to monitor the frequency range of interest.

Ideal for testing the size of electromagnetic fields on fans, electrical appliances, wiring, power lines and more, the Extech 480826 is a three-axis EMF meter that can measure EMF input from X, Y and Z directions.

The meter is capable of measuring EMF levels in both μTesla (with ranges of 20μTesla, 200μTesla and 2000μTesla and can also measure in mGauss (200mGauss, 2000mGauss and 20000mGauss). with bandwidth of 30Hz to 300Hz.

To measure EMF the Extech 480826 uses a remote sensor attached via a cable to the main measurement unit. Measurements are shown on a built-in LCD screen in your chosen unit which can be switched between using a unit button on the front of the tester. A data hold function is also included to temporarily freeze the last value taken on the screen.


The 480826 Comes Supplied With:

  • Extech 480826 Triple Axis EMF Tester
  • Sensor with 3ft (930mm) Cable
  • 9V Battery
  • Hard Carrying Case

Key Features

  • Three axis (X, Y, Z) electromagnetic field measurements
  • Ideal for use around power lines, electrical appliances and industrial devices
  • Measures EMF in both μTesla and mGauss with three ranges for each
  • Wide bandwidth from 30Hz to 300Hz
  • Big digit LCD display makes viewing measurements easy
  • Data hold function temporarily stores last value taken on the screen
  • Remote probe attached to meter for ease of use


ISSWWW and Extech

Since 1971, Extech Instruments has focused on Test and Measurement tools built for the professionals, tradesperson and DIY’ers. Our single source strategy has made us the brand to turn to when it comes to tools that help prevent, identify and troubleshoot problems in a plethora of applications; whether it’s electrical, mechanical, maintenance, safety or environmental applications, our products are trusted by the professionals and are put to the test every day.

SpecificationsRangeResolutionBasic Accuracy
µTesla 20µTesla 0.01µTesla ±(4% + 3d)
200µTesla 0.1µTesla ±(5% + 3d)
2000µTesla 1µTesla ±(10% + 5d)
mGauss 200mGauss 0.1mGauss ±(4% + 3d)
2,000mGauss 1mGauss ±(5% + 3d)
20,000mGauss 10mGauss ±(10% + 5d)
Number of Axis Three axis X, Y, Z direction
Band width 30Hz to 300Hz
Sampling Time Approx. 0.4 second
Power Current Approx. DC 2.7mA
Dimensions 7.6x2.6x1.2" (195x68x30mm)

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.