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KEW 4202

  • Various useful functions are available on Android devices using Bluetooth communication

    Real time measurements can be transferred, shown and saved on Android device (up to 100 measurements)
  • Saved data includes measurement, GPS location and date & time Easy to check on map “When” and “Where” the measurement was made
  • Comparator function on Android device informs when the measured value is lower/higher than the preset value Earth /Ground resistance and Leakage current measurement functions
  • The earth resistance from 0.05 to 1500 Ω can be measured without the auxiliary earth spikes in multi-earthing systems
  • True RMS leakage or phase current readings from 0.1mA to 30.0A provides vital additional information in earthing networks
  • Filter function offers increased immunity to electrical noise and a Noise mark appears in excessively high noisy environments


  • φ32
  • Backlight
  • Bluetooth
Free Android software “KEW smart 4202”
is available on “Google Play Store”(*)<System requirement>
• Supporting Android ver. 3.0 – 6.0
• WVGA (800 × 480) resolution or higher
• GPS function(*)Please search “KEW Smart” in Google Play Store.
Communication charge may be incurred separately to download application.
Earth resistance Auto range20.00/200.00/1500Ω
±1.5%±0.05Ω(0.00 – 20.99Ω)
±2%±0.5Ω(16.0 – 99.9Ω)
±3%±2Ω(100.0 – 209.9Ω)
±5%±5Ω(160 – 399Ω)
±10%±10Ω(400 – 599Ω)
AC current (50Hz/60Hz) Auto rangeValues are displayed, but accuracy isn’t guaranted(600 – 1580Ω)
±2%±0.7mA(0.0 – 104.9mA)
±2%(80mA – 31.5A)
Operating indicationEarth resistance function :
Constant voltage injection
Current detection (Frequency : Approx.2400Hz)
Dual Integration
AC current function : Successive approximation
Over-range indication“OL”is displayed when input exceeds the upper limit of a measuring range
Response timeApprox. 7 seconds (Earth resistance)
Approx. 2 seconds (AC current)
Sample rateApprox. 1 times per second
Communication InterfaceBluetooth Ver2.1 + EDR Class2
Current consumptionApprox. 50mA (max.100mA)
Measurement timeApprox.5 hours (when R6 is used) Approx. 21 hours (when LR6 is used)
Auto power-offTurns power off about 10 minutes after the last button operation.
Conductor sizeApprox.Ø32mm
Applicable standardsIEC 61010-1 CAT Ⅳ 300V Pollution degree2
IEC 61010-2-032, IEC 61326 (EMC)
Power sourceDC6V : R6(sizeAA manganese battery) x 4
or LR6 (sizeAA alkaline battery) x 4
WeightApprox. 780g (including batteries)
Included AccessoriesLR6 x 4, Instruction manual
8304 (Resister for operation check)
9167 (Carrying case[Hard])

Accessories/ Optional Accessories /Related Products

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