Kewtech KT66DL 12-in-1 Multifunction Tester & EVSE Adapter

£1,329.00 Ex VAT

Include Calibration Certificate (+£0.00)


This kit includes a Kewtech KT66DL 12-in-1 Multifunction Tester with standard accessories and a Kewtech KEWEVSE EVSE Adapter.

Kewtech KT66DL 12-in-1 Multifunction Tester Overview

Ideal for electrical contractors, the Kewtech KT66DL 12-in-1 Multifunction Tester is a comprehensive and versatile test instrument with an advanced memory, rotary dial, four function buttons, and an extra-large (3.5”) dot-matrix colour display. It is equipped with several auto-test functions and supports loop testing with three- and two-wire low current options, RCD testing, and EV charging point testing as well as the following:

  • ATT (Anti-Trip Technology) Loop: no-trip LOOP L-PE testing on all RCDs; two-wire option in case there is no neutral.
  • Loop: high test current range of 2Ω with 0.001Ω resolution
  • Zs Limit: compares the measured result with the values stated in the Electrical Installations Standard (BS7671 – 18th Edition)
  • 55V Loop: low and high current loop test of 110V CTE circuits
  • RCD Tests: single, auto, ramp, and contact voltage test options. Suitable for checking type AC, A, F, B (General & Selective), EV, and variable RCDs
  • Earth: two- and three-wire earth resistance tests
  • Insulation Resistance Tests: 100V, 250V, 500V and 1000V tests with auto-discharge voltage
  • Continuity: 200mA and 150mA tests with a selectable buzzer
  • Phase Rotation: test three-phase lines; the sequence is clearly indicated on the display
  • True-RMS Voltage: 2-600V
  • SPD (Surge Protection Device) Test: for SPDs that use varistors
  • PAT (Portable Appliance Tester) Function: includes insulation and protective conductor resistance tests
  • Selectable Touch Voltage Test

Help displays guide the user through each test function, making the Kewtech KT66DL 12-in-1 Multifunction Tester easy to use.

Finally, the Kewtech KT66DL 12-in-1 Multifunction Tester has an IEC 61010-1 CAT IV 300V, CAT III 600V, IEC 61557-1,2,3,4,5,6,7,10 safety rating. It is also supplied with a lid, G7 test leads, and heavy-duty soft carry case.

The Kewtech KT66DL 12-in-1 Multifunction Tester is a simple-to-use, rugged and precise MFT. When used with the Kewtech EVSE Adapter, it is suitable for assessing the electrical safety and functionality of domestic and commercial EV charging points.

Please click this link for more information regarding the Kewtech KT66DL 12-in-1 Multifunction Tester.

Kewtech KEWEVSE EVSE Adapter Overview

The Kewtech EVSE Adapter can be used with Kewtech’s KT66DL 12-in-1 Multifunction Tester to verify the electrical safety and functionality of domestic and commercial electric vehicle charging points. The Kewtech EVSE Adapter includes 4mm connectors, an alternative BS1363 socket, an oscilloscope output, and CP and PP adjustment rotary switches. It is capable of simulating PE and CP errors. The Kewtech EVSE Adapter is an easy-to-use, ergonomic electric vehicle charging point test adapter.

What’s Included?

  • Kewtech KT66DL 12-in-1 Multifunction Tester
  • Kewtech KEWEVSE EVSE Adapter
  • Kewtech ACC064SP G7 Test Probe with Remote Test Button
  • Kewtech ACC065 G7 Test Lead Set
  • Batteries
  • Software
  • Kewtech Kamp 12 Mains Lead
  • Test Lead Pouch
  • Soft Carry Case
  • USB Cable
  • Padded Strap
  • Instruction Manual
  • Calibration Certificate

Tech Specs

Kewtech KT66DL 12-in-1 Multifunction Tester Technical Specifications

Loop Impedance

Range 20.00/200.0/2000Ω (auto-ranging)
Display range 0.00 – 20.99Ω / 16.0 – 209.9Ω / 160 – 2099Ω
Measuring range 0 – 2000Ω
Accuracy ±2.0%rdg±8dgt
Open-circuit voltage 7 – 14V DC
Test current 200mA test: 200mA or more (2Ω or less)
15mA test: 15mA±3mA (short-circuit)
Note • Enabled if pre-set NULL value is 9Ω or less.

• Buzzer: Buzzer sounds when measured resistance is 2Ω or less.


Range 300.0/600V (Auto-ranging)
Display range Voltage: 2.0 – 314.9V, 240 – 629V
Frequency: 40.0 – 70.0Hz (displayed at 2V or higher)
Measuring.range Voltage: 2 – 600V
Frequency: 45 – 65Hz
Accuracy Voltage: ±2%rdg±4dgt
Frequency: ±0.5%rdg±2dgt

Uc (RCD)

Mains voltage range 100-260V
Range 100V
Display range 0.0 – 104.9V
Measuring range 0 – 100V
Accuracy +5%to+15%rdg ±8dgt 230V
Test current 50 % or less of IΔn


Precise measurement Simplified measurement
Range 20.00 / 200.0 / 2000Ω (auto-ranging)
Accuracy 20Ω range; ±2%rdg±0.08Ω
The other ranges: ±2%rdg±3dgt
(Aux. earth resistance: 100Ω)
The other ranges: ±2%rdg±3dgt
Output current 20Ω range: approx. 3mA, 200v range: approx. 1.7mA
2000Ω range: approx. 0.7mA Frequency: 825Hz

Phase Rotation

Measuring Range 48 – 600V / 45 – 65Hz
Criteria of judgement Correct sequence: Clockwise symbol and “1, 2, 3” are displayed.
Reversed sequence: Counter-clockwise symbol and “3, 2, 1” are displayed.


Rated voltage 100V 250V 500V 1000V SPD (Varistor) 1000V
Range 2.000/20.00/200.0MΩ
20.00/200.0/2000MΩ 0 -1000V (increases in 1V steps)
Display range 0.000 – 2.099MΩ 0.00 – 20.99MΩ 0.00 – 20.99MΩ 1049V
1.60 – 20.99MΩ 16.0 – 209.9MΩ 16.0 – 209.9MΩ
16.0 – 209.9MΩ 160 – 1049MΩ 160 – 2099MΩ
Measuring range 0 – 200MΩ 0 – 1000MΩ 0 – 2000MΩ 0 – 1049V
Accuracy 2.000MΩ range: ±2%rdg±6dgt 20.00MΩ range: ±(2%rdg+6dgt), 200.0MΩ range: ±(2%rdg+6dgt) ±5%rdg±5dgt
20.00MΩ range: ±2%rdg±6dgt 1000MΩ range: ±(5%rdg+6dgt) 2000MΩ range: ±(5%rdg+6dgt)
200MΩ range: ±5%rdg±6dgt
Rated meas.
1.0 – 1.2mA
at 100kΩ
1.0 – 1.2mA
at 250kΩ
1.0 – 1.2mA
at 500kΩ
1.0 – 1.2mA
at 1MΩ
1.0 mA


3-Wire L-PE 2-Wire L-PE L-PE0.01ΩRes L-PE0.001ΩRes L-N/L-L
Mains input
voltage range
100 – 260V 50/60Hz
(L-N < 20Ω)
48 – 260V 50/60Hz 100 – 260V 50/60Hz 48 – 260V 50/60Hz
Range LOOP 20.00/200.0/2000Ω (auto-ranging) 20.00/200.0/2000Ω 2.000Ω 20.00Ω
PFC/PSC 2000A/20kA 2000A/20kA (PFC only) 2000A/50kA (PFC only) 2000A/20kA (PSC only) 2000A/20kA (PSC only)
Display range LOOP 0.00 – 20.99Ω
21.0 – 209.9Ω
210 – 2099Ω
0.00 –20.99Ω
21.0 –209.9Ω
210 –2099Ω
0.00 – 20.99Ω
21.0 – 209.9Ω
210 –2099Ω
0.000 – 2.099Ω 0.00-20.99Ω
PFC/PSC 0 – 2099A
2.10 – 20.99kA
0 – 2099A
2.10 – 20.99kA
(PFC only)
0 – 2099A
2.10 – 50.49kA
(PFC only)
0 – 2099A
2.10 – 20.99kA
(PFC only)
0 – 2099A
2.10 – 20.99kA
(PSC only)
Meas. range LOOP 0 – 2000Ω 0 – 2000Ω 0 – 2000Ω 0 – 2Ω 0 – 20
Accuracy LOOP ±(3%rdg+6dgt) ±(3%rdg+10dgt) ±(3%rdg+4dgt) ±(3%rdg+25mΩ) ±(3%rdg+4dgt)
PFC/PSC Depending on the accuracies of voltage and LOOP measurements
Test current @ 230V L-N:6A/60ms
N-PE:10mA (5.3Hz)
L-PE: 15mA 20Ω: 6A/20ms,
200Ω: 0.5A/20ms
2000Ω: 15mA/500ms
25A/20ms 6A/20ms


Mode Rated residual operating current (mA)(IΔn) Test current Duration
Current (mA) rms Accuracy @230V Meas. time Accuracy
x 1/2 AC G: 10/30/100/300/500/1000 S: 100/300/500 IΔn×1/2 -8% to-2% VAR:-10% to 0% 2000ms Trip Time
±3% of FS
A/F G: 10/30/100/300/500 AS:100/300/500 IΔn×1/2 -10% to 0%
B G: 10/30/100/300 S:100/300 IΔn×1/2 -10% to 0%
x 1 AC G:10/30/100/300/500/1000 S: 100/300/500 IΔn +2% to +8% VAR:0% to +10% G:550ms
A/F G: 10/30/100/300/500 AS:100/300/500 IΔn×1.4 (10mA: IΔn×2) 0% to +10%
B G: 10/30/100/300 S:100/300 IΔn×2 0% to +10%
6 mA DC IΔn 0% to +10% 10.5s
x 5 AC G: 10/30/100 S: 100 IΔn×5 +2% to +8% VAR:0% to +10% 410ms
A/F G: 10/30/100 AS: 100 IΔn×5×1.4 0% to +10%
B 10/30 IΔn×2×5 0% to +10%
20 to 110%
AC 10/30/100/300/500 S: 100/300/500 IΔn -4% to +4% by 10%
G: 300ms
S: 500ms
±3% of FS
A/F G: 10/30/100/300/500 AS:100/300/500 IΔn×1.4 (10mA:IΔn×2) -10% to +10%
B G: 10/30/100/300 S: 100/300 IΔn×2 -10% to +10% by 2% /150ms
Ramp EV 30 to 100% 6 mA DC IΔn -10% to +10% by 2% / 500ms

General Specifications

Applicable Standards IEC 61010-1 CATIII (600V) CATIV (300V) pollution degree 2, IEC 61010 -Tester , -2-030, -2-034,
IEC61557-1,2,3,4,5,6,7,10, IEC 60529 IP40, EN 61326-2-2 (EMC)
Dimensions & Weight 136 (L) x 235(W) x 114 (D) mm, 1300g including batteries (8 x AA / LR6)

Kewtech KEWEVSE EVSE Adapter Technical Specifications

Input voltage Max. 250V (single-phase), max. 430V (three-phase) 50/60Hz
Measurement Category CAT II 300V
Mains socket rating 250V/10A
Mains socket protection Fuse T10A/250V
PP simulation Open circuit, 13A, 20A, 32A, 63A
CP simulation States A, B, C, D
Error simulation CP error “E”, PE (earth fault) error
PE Pre-Test Yes
Test connector type IEC62196-2 Type 2 male
Test cable length 25cm
Working temperature 0 … +40ºC
Storage temperature -10 … +50ºC
Humidity 0-80% RH


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