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Martindale ET4000 Multifunction Tester

Martindale ET4000 Multifunction Tester
sku: MARET4000

Free UK Delivery On Orders Over £40
  • Ideal for professional electrical installation testers
  • Performs all tests to verify electrical installations
  • PASS/FAIL indicators, graphical help screens and much more

Was: £982.00
You Save: £533.00
£449.00 Incl. VAT £538.80
Was: £982.00
You Save: £533.00
£449.00 Incl. VAT £538.80
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Martindale ET4000 Multifunction Tester Details

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Buy the Martindale ET4000 and receive a FREE Martindale VT25 voltage tester and a FREE LOKKITBASE locking off kit. You can also choose another item completely FREE of Charge from the "Select an Offer" column on this page. Hurry, this offer is only available for a limited time only, while stocks last!!

Suitable for use with domestic, commercial and industrial wiring installations, the Martindale ET4000 is ideal for any professional electrical installer.

Designed to make installation testing as simple as possible, the ET4000 performs all necessary testing procedures, including insulation resistance at 50, 100, 250, 500 and 1000V, continuity testing at 200mA and 8.5mA, loop resistance and PFC (with dual display), auto RCD and ramp tests plus TRMS voltage, frequency and phase sequence.

Results are shown in two ways. A full test reading is displayed on the ET4000's high quality backlit LCD screen, and dual LED indicators will illuminate with a red/green light for tests that FAIL/PASS.

The ET4000 also includes built-in new third amendment Zs loop impedance and help screens to guide users through every aspect of the testing process. When testing loop, this tester won't trip the circuit and performs automatic polarity and wiring checks.

Martindale ET4000 Multifunction Tester Key Features

  • Dual red and green LED indicators for instant display of PASS/FAIL
  • Built-in new third amendment Zs loop impedance tables and help screens
  • Automatic polarity and wiring check upon connection
  • Auto RCD and ramp tests with all results shown simultaneously on the same screen
  • TRMS voltage and phase rotation measurements
  • Fast, reliable high current and non-trip loop testing
  • Insulation resistance testing at 50, 100, 250, 500 and 1000V
  • Continuity testing at 200mA and 8.5mA
  • Loop resistance and PFC calculations with dual display
  • Auto RCD and ramp test - 10, 30, 100, 300, 500, 1000MA for AC, A, F and S RCDs
  • Slimline remote start probe allows tests to be activated without touching the tester
  • Graphical display with integrated help screens to guide through tests
  • 300V CAT IV and 600V CAT III safety rated
  • Handheld, comfortable design

What's Included?

  • Martindale ET4000 Multifunction Tester
  • MARTL36 MFT 3 Lead Set
  • TL207 MFT Mains Lead Set
  • TL180 Remote Start Probe
  • Soft Carry Case and Strap
  • Quick Start Guide Plus Full User Guide on CD
  • Calibration Verification Certificate
  • Rechargeable Batteries
Accessories (5)

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Was: £22.00
You Save: £9.05
£12.95 Incl. VAT £15.54
Martindale TL78 50m Wander Lead
Was: £87.00
You Save: £13.05
£73.95 Incl. VAT £88.74
30M R2 Extension Wander Test Lead (PVC Cable Reel)
Was: £75.00
You Save: £45.01
£29.99 Incl. VAT £35.99
50M R2 Extension Wander Test Lead (PVC Cable Reel)
Was: £89.00
You Save: £49.01
£39.99 Incl. VAT £47.99
Silvertronic 3 Wire Silicone Test Lead Set
Was: £39.00
You Save: £17.05
£21.95 Incl. VAT £26.34
Technical Specs

Part Code: ET4000 PROMO

Martindale ET4000 Technical Specifications

Function Measuring Range Resolution Accuracy
Continuity Resistance Test current 200mA 2-wire 0.00Ω – 19.99Ω
20.0Ω – 199.9Ω
200.0Ω – 1999Ω
0.01Ω ±(3% of rdg + 3 digits)
±(5% of rdg)
±(5% of rdg)
Insulation Resistance Test voltage
50/100/250 V
0.00MΩ – 19.99MΩ
20.0MΩ – 99.9MΩ
100.0MΩ – 199.9MΩ
±(5% of rdg + 3 digits)
±(10% of rdg)
±(20% of rdg)
Test voltage 500/1000 V 0.00MΩ – 19.99MΩ
20.0MΩ – 199.9MΩ
200MΩ – 999MΩ
±(5% of rdg + 3 digits)
±(5% of rdg)
±(10% of rdg)
RCD Testing RCD Uc 0.00V – 19.9V
20.0V – 99.9V
0.1V (-0%/+15%) of rdg ± 10 digits
(-0%/+15% of rdg)
RCD t 0.00 ms – 40.0 ms
0.0 ms – max.time
0.1ms ±1 ms
±3 ms
RCD I ramp 0.2xIΔN – 1.1xIΔN (AC type)
0.2xIΔN – 1.5xIΔN (A type, IΔN ≥30 mA)
0.2xIΔN – 2.2xIΔN (A type, IΔN <30 mA)
0.05xIΔN ±0.1xIΔN
Line/Loop Impedance Zline L-L, L-N Ipsc L-L, L-N Ipsc
0.00Ω – 9.99Ω
10.0Ω – 99.9Ω
100Ω – 999Ω
1.00kΩ – 9.99kΩ

±(5% of rdg + 5 digits)
±(10% of rdg)
Zloop L-PE, Ipfc 0.00Ω – 9.99Ω
10.0Ω – 99.9Ω
100Ω – 999Ω
1.00kΩ – 9.99kΩ

±(5% of rdg+ 5 digits)
±(10% of rdg)
Voltage TRMS 0 – 550V 1V ±(2% of rdg + 2 digits)
Frequency 0.00Hz – 9.99Hz
10.0Hz – 499.9Hz
±(0.2% of rdg + 1 digits)
Earth Resistance (ET4500 Only) 3 wire 0.00Ω – 19.99Ω
20.0Ω – 199.9Ω
200.0Ω – 9999Ω
±(5% of rdg + 5 digits)
General Data Power Supply 9 VDC (6 x 1.5 V alkaline or rechargeable,
size AA)
Measurement Category CAT III 600V
Protection Classification Double insulation
COM Ports RS232 USB
Weight Approx 1.3kg
Size (L x H x W) 230 x 103 x 115mm

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Review by Danny (Posted on 04/12/2018)


Having used individual seward testers for the last 10 years , it was time to embrace the multifunction testers. Should have done it years ago. So easy to use , makes my day so much more enjoyable using this device . A big thumbs up from me

Quality product

Review by HJS Electrical Services North West Ltd (Posted on 11/05/2018)



great product and service

Review by Matthew (Posted on 19/02/2018)


The product is easy to use and great value with loads of extras free. The customer service is outstanding and dispatched fast. Very happy will order again

Impressive tester

Review by david jones (Posted on 17/07/2016)


I used this tester for the first time today without even glancing at the user manual and found it very user friendly. I have always previously used 3 separate instruments before because I always found other makes of Combined testers over complicated and geek'ish. This one is so easy to use that it is my next purchase

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