Description
Specifications
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Measurement Range: 1 Micro Ohm to 2 Kilo Ohm
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Accuracy: ±0.2% of reading, ±0.05% of range
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Test Current: 2A at 19.99 mΩ and below ranges; approx. 0.1A at higher ranges
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Display: 3½ Digit Bright LED Display
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Temperature Feature: Inbuilt temperature sensor & resistance display at 20°C (R20)
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Standards Compliance: IS 5484:1997, IS 5082:1998, IS 2067:1975, IS 694:2010,IS 1554:1988, IS 14255:1995, IS 8130:2013, IS 613:2000
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Power Source: Mains Operated
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Measurement Arrangement: 4-Terminal Kelvin Method
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Size: Compact built (8.5″ × 4″ × 6″) Can be easily carried in a small bag.
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Country of Origin: Made in India
Product Description
The Digital Micro-Ohm Meter DM-121 is a precision instrument designed for accurate measurement of extremely low resistance values in industrial and laboratory environments. With an extended range from 1 micro-ohm to 2 kilo-ohms, this meter ensures stable and reliable results with ±0.25% overall accuracy.
Equipped with inbuilt temperature sensing and automatic R20 calculation, the DM-121 eliminates the need for manual temperature correction charts, providing faster and more accurate testing. The 4-terminal Kelvin arrangement significantly reduces lead and contact resistance errors, ensuring consistent low-resistance readings.
Featuring a bright 3½ digit LED display, high test current up to 2A, and a compact bench-top design, this instrument is ideal for repetitive testing and quality control applications in cable manufacturing, switchgear testing, and electrical component evaluation.
Key Features
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Wide measurement range from 1 µΩ to 1.999 kΩ
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Dual display for RT (actual resistance) and R20 (temperature-corrected resistance)
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Inbuilt temperature measurement with automatic correction
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High accuracy of ±0.2% of reading, ±0.05% of range
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High test current up to 2 Amps for low-resistance ranges
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SET ZERO knob for precise calibration
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4-terminal Kelvin measurement for error-free readings
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Slim, lightweight bench-top design
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Fast, stable readings suitable for continuous industrial testing
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Complies with multiple Indian Standards (IS) for reliability
Applications
Perfect for:
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Cable & conductor resistance testing
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Circuit breaker and switch contact measurement
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Electrical component evaluation
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Quality assurance in cable manufacturing
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Transformer, coil, and winding resistance testing
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Laboratory & industrial low-resistance measurement
Advantages
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No calculator or correction chart required
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Automatic R20 display improves accuracy
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Designed specifically for cable industry testing needs
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Ensures precise measurement of copper wire (0.1 mm to 10 mm)
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Fully compliant with IS standards for safety & performance
Keywords: Digital Micro-Ohm Meter, DM-121, Low Resistance Measurement, Copper Wire Testing, Micro Ohm Meter, Maxwell Testing Instruments, IS 5484:1997, Cable Testing Equipment
