Martindale ET4500 Downloading Multifunction Tester

  • Built-in 3rd amendment Zs loop impedance tables
  • Memory storage for 1800 results
  • Earth spike test function
  • CAT IV Rated for additional protection
  • Red and green LED indicators for instant pass / fail results
  • Automatic polarity and wiring check on connection
  • Protected against accidental live circuit connection
  • RCD auto test and ramp test with all results on one screen
Special Price £814.20 £678.50 Regular Price £1,782.00

Availability: Limited stock

Ships Monday, December 12 if ordered in the next 2 days, 2 hours and 3 minutes!

Product Code

The downloading ET4500 multifunction tester is a comprehensive tester with added 3 wire earth resistance testing and download functionality. It's supplied with software for production of BS7671 test certificates and comes complete with USB download lead.

Ready for the 18th Edition
The ET4500 has built-in loop pass values which are set to the values as required in the 18th Edition values.

Martindale ET4500 comes with built-in pass and fail values

Simple pass / fail indication
A red & green LED indicator gives an instant notification of a pass or fail, based on the selected pass limit.

Keep your firmware up to date
A key advantage of the Martindale ET4500 is the ability to update the firmware yourself. If further changes are made in the 18th Edition testing regulations, you can update your tester without having to return it to the manufacturer.

Auto RCD test results displayed simultaneously
Most other MFTs require you to scroll through the 5 test results of an auto sequence. The ET4500 displays all the results on screen simultaneously, saving time when recording the information.

Earth ground resistance test
With this tester you can perform a 3 wire ground resistance test with the optional earth spike kit.

Automatic wiring check
When connected, a wiring and polarity check is automatically carried out. This helps identify potentially dangerous wiring faults in advance.

True RMS voltage measurement
Did you know how important true RMS readings are? Standard RMS measurement only gives an average reading and with anything other than a perfect sinewave, this reading can be as much as 50% out! With true RMS, you get an accurate measurement. Whereas this feature is only available in the top model from most other manufacturers, it is included as standard with the Martindale ET4500. This true RMS reading will ensure your recorded voltage levels really are within the new Cmin limits defined in amendment 3.

User settable pass limits
Some installations may require testing to specific pass values. The ET4500 allows you to set these limits manually, ideal if you have a number of engineers testing a site, or if you are training an apprentice.

CAT IV safety rating
Safety is paramount when it comes to testing. Using a tester on a system that it is not rated for can lead to serious injury or death. The ET4500 carries a CAT IV safety rating, offering a high level of user protection.

Easy to replace test leads
Having a test lead fail on a job can be a real headache. If you can't obtain a replacement quickly, you can lose time on a job. The ET4500 comes supplied with standard 4mm banana leads, this means you can easily get replacements from your local wholesaler if you need them urgently.

Rechargeable batteries as standard
Rechargeable batteries and mains charger are supplied with this tester as standard. The ET4500 has a built-in charger, so no need to remove the batteries. A safety lockout function ensures you cannot charge the batteries whilst carrying out tests. An optional in car charger is also available.

Comprehensive test functionality
The full list of tests the Martindale ET4500 will perform includes:

  • Insulation resistance at 50, 100, 250, 500 & 1000V
  • Continuity testing at 200mA & 8.5mA
  • Non trip & high current loop testing with PFC display
  • 3 wire earth resistance
  • Auto RCD test sequence
  • RCD ramp test
  • AC, A, F & S type RCDs (10, 30, 100, 300, 500 & 1000mA)
  • True RMS voltage reading
  • Frequency & phase rotation measurement
More Information
Manufacturer Part NumberMARET4500
Earth testYes
Type B RCD testNo
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Insulation test 50VDC, 100VDC, 250VDC,500VDC, 1000VDC
Ranges 19.99MΩ/99.9MΩ/199.9MΩ
Continuity test Short circuit current >200mA
Ranges 19.99Ω/199.9Ω/1999Ω
RCD test 10mA, 30mA, 100mA, 300mA,500mA, 1000mA.

Type AC, A, F, S

0.5, 1, 5 x I auto and ramp test

Ranges 40.0ms/max time
Loop Test Dual display (Loop Resistance of PFC)

High Current L-L L-N, Non-trip L-PE

Ranges 9.99Ω/99.9Ω/999Ω/9.99kΩ
Memory On screen recall

PC download/upload via USB

Voltage TRMS 0-550V

Frequency 9.99Hz/499.9Hz

Phase rotation

Earth Resistance Test 3-wire
Range 19.99Ω/199.9Ω/9999Ω
Complies with BS EN 61010-1



BS EN 61557

BS 57671:2018 18th Edition

BS EN 61326-1

Dimensions 230 x 103 x 115mm
Weight 1.3kg approx
Includes TL36 3 lead set RBG, TL207 mains lead set RBG, TL180 Remote probe, soft carry case and strap, quick start plus CD, calibration verification certificate, 6×1.5V AA low-loss rechargeables, mains charger
  • Martindale ET4500 Multifunction Tester
  • MFT 3 lead set RBG – MARTL36
  • MFT mains lead set RBG – MARTL207
  • Remote start probe – MARTL180
  • Soft carry case and strap
  • Quick start plus full user guide on CD
  • Calibration verification certificate
  • Low discharge rechargeable batteries
  • Mains charger
  • ET-Link Software
  • USB Cable
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