Precision
Industrial & Transit Testing & Earth Resistance Instruments
RailJet Co., Ltd. (Tokyo, Japan) delivers precision Earth Resistance Clamp Testers, Phase Volt-Ampere Meters, 1000A True RMS Multimeters, and Soil Resistivity measurement instruments built to strict Japanese quality and international IEC standards.

RailJet Clamp Earth Resistance Tester (Model: R1+)
Automatic interference detection, 4-digit black screen LCD, 300 sets memory, non-contact loop resistance test without auxiliary spikes.

Comprehensive Testing & Measurement Instruments
Engineered from our technical manuals and catalogue for power grids, signaling departments, and maintenance depots.
Earth Clamp Testers
Loop resistance from 0.010Ω to 1200Ω and leakage current testing up to 20A without opening ground down-conductors.
Phase Volt-Ampere Meters
Double clamp meters with 0.0°~360.0° phase angle, active/reactive power (0~12kW/kvar), and power factor (-1~+1).
1000A Digital Multimeters
1700V DC high voltage, 1000A True RMS, LowZ anti-ghost voltage, 60MΩ resistance, and inrush peak current capture.
Soil Resistivity Testers
Wenner 4-pole method soil resistivity calculation (0.00Ωm~9999kΩm) and 3/4-wire precision grounding grid verification.
Our 7 Official Testing Products

RailJet Clamp Earth Resistance Tester (Model: RR)
High-precision clamp ground loop resistance tester engineered with authentic Japanese precision technology (Made in Japan) for transit traction, power grid substations, and signaling earth pits.

RailJet Clamp Earth Resistance & Current Tester (Model: RR+)
Dual-capability clamp ground loop resistance and AC leakage current tester with fast digital filtering and noise suppression for substation earth grid monitoring.

RailJet Clamp Earth Resistance & Leakage Tester (Model: R1)
Extended-range clamp ground resistance and leakage current tester with 0.010Ω - 500Ω loop measurement range designed for transit OHE and traction substations.

RailJet Clamp Earth Resistance Tester (Model: R1+)
Flagship high-precision clamp ground loop resistance & leakage current tester engineered with authentic Japanese precision technology (Made in Japan) with luxury high-contrast black screen display.

RailJet Ground Pile Clamp Earth Resistance Tester (Model: R2)
Multi-functional 2.4-inch color LCD ground pile clamp tester supporting Clamp Method, 2/3/4-Wire Method, AC Current, and Ground Voltage testing with USB PC software.

RailJet Multi-Functional Soil Resistivity & Grounding Tester (Model: R3)
Advanced ground pile clamp & soil resistivity tester supporting Wenner 4-pole calculation, 2/3/4-wire earth resistance, selection method, and leakage current measurement.

RailJet Advanced Smart Soil Resistivity & Clamp Tester (Model: R3+)
Top-tier flagship smart clamp ground pile & soil resistivity tester featuring integrated Bluetooth Mobile App connectivity, USB PC software, Wenner 4-pole calculation, and FFT digital filtering.








Key Industry & Client Sectors
RailJet Pvt Ltd supplies high-precision testing instruments and electrical safety solutions across power substations, metro transit systems, rolling stock assembly units, and heavy industrial plants.
High-Speed Rail & Shinkansen Networks
Traction Power, OHE & Substation Earth Pits
Metro & Urban Transit Systems
Depots, 750V/1500V DC Traction Systems
Power Grid & EHV Substations
Grounding Grids, Surge Earth & Switchyards
Heavy Rolling Stock & Loco Sheds
Inrush Current, Motors & Traction Inverters
Renewable Energy & Solar Mega-Grids
Soil Resistivity Surveys & Earth Loop Arrays
Heavy Industrial Engineering Plants
Precision Plant Grounding & Insulation Safety
Vendor & Procurement Desk
Looking to request quotations for division tenders or register as an approved vendor? Connect with our team.
Need Direct Factory Quotation or Calibration Specs?
Connect with our Tokyo corporate headquarters or contact our global instrumentation distribution desk.
