The HT3548 Handheld Resistance Tester is a lightweight portable milliohm meter for low resistance measurement. It delivers fast, accurate readings for equipment maintenance, field inspection and on-site component testing, with compact housing for convenient outdoor and workshop use.
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HT3548 Handheld Resistance Tester
The HT3548 Handheld Resistance Tester, portable industrial low-resistance tester for field maintenance.
HT3548 Overview
The HT3548 Handheld Resistance Tester delivers a portable DC resistance measurement solution, covering a wide range from 0.1μΩ to 3.3MΩ with 0.02% basic accuracy.
It is widely applied for testing common resistors and coil resistance of large motors, transformers and inductors. It also supports cable dimension inspection, metal & weld detection, and EV ground connection testing.
The ultra-low-power design enables around 7 hours of continuous operation under the 0.1μΩ measurement range. Featuring excellent surge withstand capability, the HT3548 Handheld Resistance Tester reliably performs winding resistance tests for various industrial devices.
HT3548 Technical Features
- 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.
HT3548 Applications
- Transformer and motor winding resistance testing
- Power transmission & cable field inspection
- Electrical connector and harness resistance measurement
- Semiconductor components and precision resistor testing
- Metal weld quality and grounding connection detection
- EV electrical system on-site maintenance
Transformer
Temperature sensor
Automotive connectors
Solder joints of PCB
HT3548 Technical Data Sheet
| 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
HT3548 Handheld Resistance Tester Dimension Detail Display
HT3548 Handheld Resistance Tester Accessories Detail Display
L9348-1M Temperature Probe
Optional L9363B Kelvin Pin-Type Test Probe
Standard accessories for HT3548 Handheld Resistance Tester include temperature sensor probe and 4-wire test probes. They guarantee stable and accurate resistance & temperature measurement for on-site tests.
Low DC Resistance Meters Available
We supply a full series of low DC resistance meters, covering single-channel handheld model and multi-channel benchtop models for batch testing. Select the proper channel version according to your production and measurement requirements.
| 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
- Wide range: 0.00001mΩ to 1200.00mΩ
- High-speed, high-precision test: the fastest is 2.2mS, basic accuracy 0.01%.
- Support multi-channel test (optional multi-channel scan card)
- Thermoelectric potential compensation (OVC)
- Analog output interface: 0~1.5V
- Test line anomaly detection
Get HT3548 Free Quote
Looking for reliable handheld low DC resistance tester for field measurement?
HT3548 delivers high-precision 4-wire testing for motor winding, transformer, battery and cable resistance.
We provide custom test solution, fast delivery and professional after-sales support.
Submit your inquiry now to get detailed datasheet & competitive quotation.
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