Product Description
The HK48D Digital Multimeter is a compact True RMS auto-ranging multimeter designed for users who need broader measurement capability in a convenient handheld format. In addition to DC/AC voltage, DC/AC current, and resistance, it also supports frequency measurement, making it a more versatile choice for technicians and maintenance personnel.
Its auto range selection helps speed up operation, while practical functions such as diode test, continuity buzzer, flashlight, LCD backlight, MAX hold, data hold, and relative mode improve efficiency during daily electrical work. With support for both DC and AC current measurement, the HK48D is especially suitable for broader diagnostic applications compared with entry-level meters.
Compact, easy to carry, and rated CAT III 600 V, the HK48D is a good fit for electrical maintenance, equipment inspection, workshop testing, and general service tasks.
Key Features
- 2000-count digital multimeter for accurate voltage, current & resistance measurement
- CAT III 600V rated multimeter for safe industrial and commercial electrical testing
- Manual range multimeter for stable and precise readings in field applications
- Built-in continuity tester with buzzer for fast circuit troubleshooting
- Diode test function for electronics repair and diagnostics
- Data Hold & MAX measurement for efficient fault detection
- Ideal for electricians, HVAC technicians, and maintenance engineers
- Compact handheld multimeter for portable on-site testing
- Auto power-off to extend battery life
- Powered by 2× AAA batteries for easy replacement
Specifications
| Item | HK48D Specification |
|---|---|
| DC Voltage | 200mV: ±(0.5% + 2d) |
| 2V / 20V / 200V: ±(0.8% + 3d) | |
| 600V: ±(0.8% + 5d) | |
| AC Voltage | 2V / 20V / 200V: ±(1.0% + 5d) |
| 600V: ±(1.2% + 5d) | |
| DC Current | 200μA / 2000μA / 20mA: ±(1.0% + 5d) |
| 200mA: ±(2.0% + 5d) | |
| 2A / 10A: ±(3.0% + 5d) | |
| AC Current | 200μA / 2000μA / 20mA: ±(1.8% + 3d) |
| 200mA: ±(2.5% + 5d) | |
| 2A / 10A: ±(3.0% + 10d) | |
| Resistance | 200Ω: ±(1.0% + 8d) |
| 2kΩ / 20kΩ / 200kΩ / 2MΩ: ±(2.0% + 2d) | |
| 20MΩ: ±(5.0% + 2d) | |
| Frequency | 20kHz: ±(1.5% + 5d) |
| True RMS | Yes |
| Display Count | 1999 |
| Diode Test | Yes |
| Continuity Buzzer | Yes |
| Flashlight | Yes |
| NCV | No |
| Live Wire Recognition | No |
| LCD Backlight | Yes |
| MAX/MIN | MAX |
| Data Hold | Yes |
| Relative Mode | Yes |
| Auto Power Off | Yes |
| Range Selection | Auto |
| CAT Rating | CAT III 600V |
| Battery Type | 1.5V (AAA) × 2 |
| Display Size | 50 × 26mm |
| Product Size | 144 × 70 × 32mm |
| Product Weight | 200g |
Applications
Electrical maintenance and inspection
AC/DC current measurement in service work
Appliance and equipment troubleshooting
Workshop repair and bench testing
General-purpose voltage, resistance, and continuity checks
Frequency testing in basic electrical diagnostics
FAQ
1. What is a digital multimeter used for?
A digital multimeter is used to measure voltage (AC/DC), current, resistance, and frequency, helping electricians and technicians diagnose electrical circuits, troubleshoot faults, and verify system performance. It is widely used in electrical maintenance, HVAC systems, industrial testing, and electronics repair.
2. What makes the HK48D different from the HK36A+?
The HK48D digital multimeter includes AC current measurement and frequency testing, while the HK36A+ focuses on basic electrical measurements.
Additionally, the HK48D features auto-ranging, making it more efficient for users who need fast and versatile electrical diagnostics.
3. Is the HK48D a True RMS multimeter?
Yes. The HK48D is a True RMS multimeter, which provides accurate readings when measuring non-linear loads such as variable frequency drives (VFDs), HVAC systems, and modern electronic equipment.
4. Does the HK48D measure AC current?
Yes. The HK48D supports AC current measurement up to 10A, making it suitable for basic electrical testing, appliance diagnostics, and maintenance work.
5. Does the HK48D support frequency measurement?
Yes. This frequency multimeter can measure up to 20kHz, which is useful for testing signal frequency, power systems, and electronic circuits.
6. Is the HK48D auto-ranging or manual range?
The HK48D is an auto-ranging multimeter, allowing it to automatically select the correct measurement range. This improves speed, convenience, and ease of use, especially for field technicians.
7. Does the HK48D include NCV (non-contact voltage detection)?
No. The HK48D does not include NCV detection.
If non-contact voltage testing or live wire detection is required, the HK36A+ may be a better choice.
8. What safety rating does the HK48D have?
The HK48D is rated CAT III 600V, making it suitable for distribution-level electrical testing, including panels, circuits, and building wiring systems.
9. Is CAT III 600V enough for electricians?
Yes. A CAT III 600V multimeter is sufficient for most commercial and residential electrical work, including distribution panels, wiring systems, and equipment testing.
For higher-risk environments such as utility or outdoor power lines, a CAT IV multimeter may be required.
HK48D vs. HK36A+ Comparison
| Feature | HK36A+ | HK48D | Comparison Result |
|---|---|---|---|
| Display Count | 1999 | 1999 | Same |
| Range Selection | Manual | Manual | Same |
| Auto Power Off |  |  | HK48D is more power-efficient |
| MAX Hold Function | | | HK48D supports maximum reading storage |
| Backlight | | | Both have LCD backlight |
| Data Hold | | | Same |
| Frequency Measurement | 20kHz | 20kHz | Same |
| True RMS | | | Neither supports True RMS |
| Product Weight | 200 g | 200 g | Same |
| Safety Rating | CAT III 600V | CAT III 600V | Same |
| Design | Compact basic model | Upgraded compact model | HK48D provides improved usability and features |
