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Kewtech KT64DL Multifunction Tester

FREE Gift Featuring a locking test switch, the Kewtech KT64 6-in-1 multifunction tester enables you to continually carry out a test without having to press the test button over and over again

Important Calibration Information

This instrument comes with a manufacturers calibration certificate.
Please see 'Calibration Options' in the description for more details.

Next Day Delivery (subject to availability)

£575.00 exc. VAT £690.00 inc. VAT £1,458.00 inc. VAT
  • Manufacturer Certificate Included
  • Auto RCD
  • Backlit LCD Display
  • Non Trip Loop Testing
  • Memory Function
  • FreeDelivery
  • 30DayMoneyBack
Required Fields
  • Description
  • Features & Specification
  • Resources
  • Delivery

Free Gifts

This instrument comes complete with your choice of free gift from the drop-down menu above. Choose from a calibration voucher for next 
year or a 50m R2 wander lead. How about any one of the IET Guidance Notes, or a quality two-pole tester? 
Whatever you choose you can be sure you're getting a fantastic deal at Instrument Sales & Service.

Kewtech KT64DL Multifunction Tester

Featuring a locking test switch, the Kewtech KT64 6-in-1 multifunction tester enables you to continually carry out a test without having to press the test button over and over again

A remote test probe allows users to start a test by pressing a button on the test probe rather than on the tester itself, which proves extremely useful when you are on top of a ladder carrying out a loop test to a light fitting for example.

Designed for both the experienced electrician and the Part P domestic installer alike, the KT64 is simple to navigate and configure by using a colour coded rotary dial and a set of function keys. The KT64DL is intended for use within the UK; when testing RCD’s using the automatic RCD test, all of the six test results are clearly shown on a single screen which means you no longer have to navigate through multiple screens.  Furthermore, the Kewtech anti-trip (ATT) function allows for hassle-free loop testing whilst delivering the fastest, most accurate test results available.

The Kewtech KT64DL is a fantastic mid-range multifunction tester with a price-tag to suit. Also supplied with a 2-year manufacturer’s warranty, you can be sure to rely on continued support after your purchase.

*Calibration Options:

This instrument comes complete with the manufacturers dated calibration certificate. Please be aware that these certificates are generic and may also be time lapsed. If you would prefer a personalised full traceable calibration certificate applied to the equipment before dispatch, then please select this option from the drop-down menu above, an additional calibration charge will apply.

The KT64DL Is Supplied With:

  • ACC064SP G7 test lead with remote test button
  • ACC065 G7 Test lead set
  • Batteries
  • Instruction Manual
  • Manufacturers Calibration Certificate
  • End of line Certificate
  • KAMP 12 Mains lead
  • Test lead pouch
  • Soft carry case

Key Features:

  • Anti-Trip Technology for full no trip LOOP testing on all RCD types
  • Test button in the probe as well as lockdown test button for ‘hands-free’ testing
  • Easy PFC & PSC measurement without the need to alter test probes
  • 250, 500 & 1000V insulation tests with auto discharge
  • Additional LED for warning of high voltage output in insulation test mode
  • Memory for test lead resistance compensation
  • Selectable touch voltage
  • Backlit display
  • Auto-test memory for RCD testing with all results shown on one screen, so no scrolling
  • Conducts phase to phase loop tests
  • End of line calibration certificate included
  • Complies with BS7671
  • Easy To Use
  • No tripping loop impedance tests
  • Auto-test for RCD testing – single screen results
  • Free Gift

Which Kewtech Multifunction Tester is Right For Me?

Kewtech MFT Selector

ISSWWW and Kewtech

One of our longest standing manufacturer partnerships and a brand that sells well day in day out for solid dependability and innovation at the price point.

Kewtech manufacture innovative, accurate and reliable test equipment that enables UK electrical contractors to undertake their testing obligations quickly and efficiently.

A product with the “Kewtech” brand has been specifically designed for the UK market by a team with many years of industry experience. We pride ourselves on developing and manufacturing products that have a real benefit to the industry.

Kewtech has consistently introduced industry firsts, like our Lightmate testing adaptors, the Pat Adaptor, the MFT with PAT testing plus download and our award-winning RB1 Replacement Lamp. Our 17th Edition multifunction testers lead the way in ease of use, loop accuracy and repeatability of reading.

Kewtech KT64DL Multifunction Tester


 Open Circuit Voltage (DC)   Short Circuit Current   Range   Accuracy 
5V ±20% Greater than 200mA   20/20/2000Ω 0 - 19Ω ±0.1Ω
 Auto-Ranging   0.2 - 2000Ω    ±(2%rdg+8dgt)  

Insulation Resistance

 Open Circuit Voltage (DC)   Rated Circuit Current  Range Accuracy
250V+40% -0% 1mA or greater 20/200MΩ 20-200MΩ
@ 250kΩ Auto-Ranging ±(5%rdg+6dgt)
500V + 30% -0% 1mA or greater  20/20/1000MΩ 200-2000MΩ
@500kΩ Auto-Ranging ±(5%rdg+6dgt)
1000V+20% - 0% 1mA or greater  20/200/2000MΩ   200-2000MΩ
@1MΩ Auto-Ranging ±(5%rdg+6dgt)

Loop Impedance

 Function   Rated Voltage   Nominal Test Current    Range   Accuracy 
at 0Ω External Loop:
L-PE 100-260V 20Ω: 6A/20ms  20/200/2000Ω    ±(3%rdg+4dgt) 
50/60Hz 200Ω: 2A/20ms Auto-Ranging
  2000Ω: 15mA/360ms  
L-PE 100-260V L-N: 6A/30ms 20/200/2000Ω ±(3%rdg+6dgt)
(ATT) 50/60Hz N-PE: 10mA Auto-Ranging
    approx. 4s L-N<20Ω
L-N/L-L 100-500V 20Ω: 6A/20ms 20Ω ±(3%rdg+4dgt)

PSC (L-N/L-L) / PFC (L-PE)

PSC 100-500V 6A/20ms 2000A/20kA PSC accuracy is derived
50/60Hz Auto-Ranging from measured loop impedance
PFC 100-260V 6A/20ms 2000A/20kA  specification and measure voltage  
50/60Hz 2A/20ms Auto-Ranging specification
 PFC (ATT)   100-260V   L-N: 6A/30ms 2000A/20kA  
50/60Hz  N-PE: 10mA/approx 4s  Auto-Ranging  


 Function   Rated Voltage Accuracy
Trip Current Trip Time
AC Type A Type
x1/2 230V+ -0.1 ±10% ±(1%rdg+3dgt)
x1 10%-15% -0.06
x5 50/60Hz -0.06
Ramp   ±4%
Auto Depending on the accuracy at each function
Measurement sequence:
x1/20°->X1/2 180°->X1 0°->X1 180°-> X5 0°-> X5 180°
Measurements with X5 aren't carried out when current is 300mA or more
Continuity/Insulation/Loop/PSC ranges uses the rolling average

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 PM 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 your delivery.

Bank/Public Holidays

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 subject to activities/holidays of our carriers and therefore may incur additional days lead time to your order.

*UK Mainland (Temporarily revised June 2020)

Please note that regrettably, we have had to realign our delivery service options to those available from our carriers.
During the current situation surrounding the effects of the Coronavirus pandemic, logistics from every company are under immense pressure to deliver goods on time.
We have taken the decision to temporarily limit our services rather than let our customers down.
We hope you will understand our position on this and we apologise unreservedly for the inconvenience we know this will cause.
We look forward to restoring our full delivery service schedule just as soon as we are able.

Standard FREE 1-2 Day Courier Delivery – UK Mainland only - Zones A & B

Included in the price for all orders over £75.00 (exc vat). Sent using express courier, delivered within 1-2 working days from the date of your order, subject to availability.


Next Day Anytime Delivery (Excluding Saturday & Sunday) – UK Mainland only - Zones A & B
Sent by express courier, delivered next day (excluding weekends) from the date of your order, subject to availability.


Orders must be placed before 3:00pm for a qualifying next day delivery and a telephone number supplied, subject to availability.

New Postage Map Sept 2018>

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 (Charges are calculated at the checkout).
  • Zone D - Outer Hebrides, Orkney Isles, Shetland Isles, Isle of Man, Scilly Isles, and Channel Islands (Charges are calculated at the checkout).
  • Zone E - Northern Ireland (Charges are calculated at the checkout).
  • Zone F - Republic of Ireland (Charges are calculated at the checkout).

Offshore Services

All offshore deliveries are a 2 day service as standard. This includes Channel Islands, Northern & Southern Ireland, Scottish Islands, Isle of Man and the Scilly Isles.

International Delivery

International delivery charges are automatically added to your order at the checkout. For any questions regarding international deliveries please contact us at


All export inquiries should be directed to the export division before placement of order.

If no shipping option is available to your selected country please call us FREE on 0800 0224 060 to purchase your items.
All stated prices are subject to VAT at the current rate where applicable E&OA