Kewtech KT35 Digital Insulation/Continuity Tester



Kewtech KT35 Digital Insulation/Continuity Tester Details

Including all of the functionality you need for measurements of insulation resistance in any electrical application, the Kewtech KT35 is fully compliant with BS7671 (Part P) regulation and ideal for use by any domestic installer.

Featuring three selectable test voltages of 250, 500 and 1000V the KT35 is capable of measuring insulation resistance from 0-20MΩ, 0-200MΩ and 0-2000MΩ. Results are shown on the tester’s built-in LCD screen as both a digital reading and shown on an analogue bar graph and it is also possible to use this tester to measure continuity up to 2000Ω.

An integrated lock-down test button allows the user to configure and activate a test and then work completely hands-free. You’re also protected at all times thanks to an auto capacitive discharge facility, protection against accidental connection to a live circuit and a built-in live circuit warning.

Kewtech KT35 Digital Insulation/Continuity Tester Key Features

  • Measures both insulation and continuity
  • 250V, 500V and 1000V insulation test ranges
  • Capable of measuring insulation up to 2000MΩ
  • Continuity measurements up to 2000Ω
  • Bar graph indication of test voltage
  • Built-in memory for test lead compensation, ensuring accurate results
  • Lock down test button – activate a test and keep working completely hands-free
  • Live circuit warning and protection against accidental connections to live circuits
  • Battery check LED light
  • Auto capacitive circuit discharge facility
  • Designed in compliance with BS7671 (Part P)

What’s Included?

  • Kewtech KT35 Digital Insulation/Continuity Tester
  • ACC020 Test Leads
  • Batteries
  • Carrying Strap
  • Instruction Manual
  • Certificate of Conformity

Please note: this tester is not supplied as standard with a full calibration certificate. We recommend adding a calibration certificate to your order when making a purchase to ensure you get the maximum life out of your new KT35 insulation tester.

Technical Specs



Part Code: KT35

Kewtech KT35 Technical Specifications

Insulation Test Ranges
DC Test Voltage 250V, 500V, 1000V
Measuring Ranges 0-20MΩ, 0-200MΩ, 0-2000MΩ
Output Voltage on Open Circuit 250V DC ± 10%, 500V DC ± 10%
1000V DC ±10%
Output Voltage 250V DC min. at 0.25MΩ
500V DC min. at 0.5MΩ
1000V DC min. at 1MΩ
Output Current (as per BS7671) 1mA DC min. at 0.25MΩ (250V)
1mA DC min. at 0.5MΩ (500V)
1mA DC min. at 1MΩ (1000V)
Output Short Circuit Current 1.3mA approx
Accuracy 20MΩ/200MΩ – ±(1.5% rdg + 5 dgt)
2000MΩ – ±(10% rdg + 3 dgt)
Continuity Resistance Ranges
Measuring Ranges 0-20Ω, 0-200Ω, 0-2000Ω
Accuracy 0-20Ω – ±(1.5% rdg + 5 dgt)
0-2000Ω – ±(1.5% rdg + 3 dgt)
Open Circuit Voltage 4V-9V
Short Circuit Current (BS7671) 200mA min
Withstand Voltage 500V AC maximum for one minute between electrical
circuit and housing case
Overload Protection 600V AC for 30 seconds (insulation resistance ranges)
500mA HRC Ceramic Fuse (continuity resistance ranges)
Safety Standard  Designed to comply with the requirements of BS EN 61010-1, CAT III BD 4743
Dimensions 175 x 115 x 86mm
Weight 640g
Power Source 6 x 1.5V AA


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