Kewtech KEW4140 Loop Impedance Tester



  • Anti-trip - won't trip RCDs when testing
  • Test loop, PFC and PSC
  • Also tests voltage, frequency and phase rotation
  • IP54 rated design - water & dust proof
More Information
Warranty1 year
Price MatchYes

Kewtech KEW4140 Loop Impedance LOOP/PFC/PSC Tester

Featuring ATT anti-trip technology as standard, the Kewtech KEW4140 Loop Impedance Tester performs completely trip-free loop testing on all RCDs rated 30mA or above, perfect for those seeking a high-quality and efficient instrument.

Capable of performing loop, PFC, PSC and phase rotation testing on electrical installations, the Kewtech KEW4140 boasts a dual display, showing a choice of simultaneous measurements.

Suitable for two-wire connection (with L-L, L-N and PSC testing possible), the Kewtech KEW4140 also offers a special lock down test button, allowing completely hands-free testing to take place.

With a built-in backlight for use in low-light environments and an IP54 rated design, the Kewtech KEW4140 Loop Impedance Tester is a user-friendly, versatile and durable instrument.


  • ATT anti-trip technology allows trip-free loop testing on RCDs rated at 30mA and above
  • Dual display, simultaneously showing measurements such as loop and PFC/PSC
  • Two wire connection for Loop L-N, L-N and PSC
  • Phase rotation, voltage and frequency measurements
  • Lock-down test button for hands-free testing
  • Display and front panel keyboard, featuring integrated backlight for use in poor lighting conditions
  • IP54 rated design - water & dust proof

What's Included?

  • Kewtech KEW4140 Loop Impedance Tester
  • Safety Test Leads
  • Soft Carrying Case
  • Belt Strap
  • Instruction Manual
  • 6 x LR6 Batteries
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