Instruments
for Accuracy
and Reliability.

Rugged hand-driven generator type insulation testers in metal and wooden body variants, from 100 V to 10 kV test voltages. The original CIE design — built and calibrated in Howrah since 1963.

Multi-voltage, selectable-range hand-driven insulation testers with built-in continuity range. Available in MR-1 through MR-8 series covering a wide range of voltage and insulation range combinations.

Motorised generator type insulation testers for sustained high-voltage testing up to 10 kV. Motor-cum-hand driven variants offer dual operation modes.

Dual-scale multi-voltage motorised insulation testers. MR-A through MR-E series with inner/outer scale display for multiple test voltage and range combinations.

Economical bakelite and compact metal body hand-driven insulation testers for everyday site and workshop use at 100 V to 1000 V.

Hand-driven metal body earth testers for 3-terminal earth resistance and 4-terminal soil resistivity measurement. Supplied as a complete kit with spikes, wire spools and carrying bag.

Microcontroller-based digital insulation testers with LCD display, DAR and PI functions, rechargeable battery option, and test voltages from 100 V up to 5000 V.

4-terminal digital earth resistance testers and bench-type digital micro-ohm / contact-resistance meters for precise low-resistance measurement.

True-RMS clamp meters up to 1000 A AC/DC and 3½-digit digital multimeters for voltage, current, resistance, capacitance, and temperature measurement.

AC high-voltage test sets (0–5 kV) for cable and equipment HV testing, and phase sequence indicators for 3-phase supply verification.

Transformer oil dielectric strength (BDV) testers from 50 kV to 120 kV. Manual and motorised variants with options for digital display and magnetic stirrer.

Single-phase and three-phase relay test sets for commissioning and testing of protection relays. Variable AC/DC current and voltage sources with phase angle control.