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Portable design ideal for maintenance and testing of large equipment
HT3548 DC resistance tester offers a portable solution for measuring resistance with a wide range 0.1μΩ~3.3MΩ at basic accuracy of 0.02%.
It has a wide application in measurement of ordinary resistors, coil resistance (large motors, transformers, and inductors), cable length and diameter detection, pipe welding and metals detection and electric cars to ground connection detection and so on.
Its ultra-low-power design makes the instrument continuous work for approximately 7 hours in 0.1μΩ measurement range.
Due to the strong surge withstand capability, HT3548 can be used to test winding resistance of devices.
- Compact and portable structure with powerful function
- Unique measuring conductor length function
- Unique 300mA current test
- The measured value automatically maintained and stored
- Has stable measurement value (average function)
- With thermoelectric compensation(OVC), temperature conversion, length conversion functions.




Model | HT3548 Portable |
Display | 4.3-inch VFD display |
Measurement items | ESR, temperature |
Basic accuracy | 0.1%±0.03% reading (3mΩ,30mΩ,3MΩ); 0.05%±0.02%readings (300KΩ; 0.02%±0.01%readings (the other ranges) |
Measurement range | 3mΩ/30mΩ/300mΩ/3Ω/30Ω/300Ω/3kΩ/30kΩ/300kΩ/3MΩ |
Measurement speed | 5 meas/sec |
Maximum test current | DC 100mA-1A |
Temperature | Range: -10°C ~60°C Accuracy: ±1°C |
Correction | Short-circuit reset for all ranges |
Comparator | HIGN/IN/LOW sorting |
Internal data storage | Store up to 2400 test data |
Trigger | Internal/auto trigger |
Signal source | AC 1kHz, Test current: <150mA |
Resolution | 0.1μΩ |
Other functions | OVC, length conversion function, temperature correction |
Interface | USB, external |
Power supply | 12V/1700mAh lithium battery, AA (LR6) Alkaline Batteries x 8 |
Rated Power | 2.5W |
Dimensions | 208 mm (L) x120mm (W) x 52mm (D), without sleeve |
Accessory | Standard:HT9363-B test probe, HT9348, power cord,12.6V charger, lithium battery |
Weight | 0.81kg |
HT3548 portable battery tester powered by 12V 1700mAh lithium battery or 8 pieces LR dry batteries
Low DC Resistance Meters Avaliable
Model | Channel No. | Design | Range | Accuracy |
HT3548 | Single | Handheld | 3mΩ~3MΩ |
0.02%±2 (reading) |
HT3544 | Benchtop | |||
HT3544-12H | 12-channel | |||
HT3544-24H | 24-channel | Benchtop |
HT3544 DC Resistance Tester
- Anti-interference design, suitable for complex occasions in electromagnetic environment
- Fast and high-precision testing, rich interfaces
- The maximum 70V live protection function effectively avoids inadvertent live test damage to the host tester
- Support multi-channel testing (optional multi-channel scan card.)
HT3548 handheld DC resistance tester
- Compact and portable, the performance of a portable tester comparable to that of a desktop tester
- Temperature compensation, temperature conversion and length conversion
- The measured value is automatically maintained and stored automatically
- Stable measured value (average value function)
- Thermoelectric potential compensation (OVC)
- Large-capacity battery for long-lasting operation
HT3542 DC Resistance Tester