Product Description
The HK88B Digital Multimeter is the more advanced model in the HK88 series, combining True RMS performance, auto ranging, EBTN display, wider measurement capability, and stronger North America-facing certification presentation. Compared with HK88A, it offers a higher 5999-count display, V.F.C function, a much wider temperature range, and square wave output, making it better suited for more demanding diagnostics and broader service applications.
A major selling point of the HK88B is that the supplied product sheet shows FCC and ETL (cETLus) markings for HK88B only, giving it stronger positioning for customers and distributors who value compliance visibility in North American channels. Intertek states that the ETL Listed Mark indicates a product has been independently tested and certified to applicable North American safety standards, and that it is accepted across the U.S. and Canada.
For brands, importers, and professional users, HK88B stands out as the more premium option: broader function coverage, better display count, added signal-related functions, and a more market-ready certification profile.
Key Features
True RMS measurement for reliable real-world testing
5999-count auto-ranging display for higher resolution than HK88A
EBTN display for improved visibility in darker working conditions
FCC and ETL (cETLus) markings shown for HK88B only, strengthening its premium and North America-oriented positioning
NCV detection and live wire recognition for fast electrical checks
LoZ AC/DC helps reduce ghost-voltage false readings
V.F.C function for better drive-related or variable-frequency applications
Measures DC/AC voltage, DC/AC current, resistance, capacitance, frequency, and temperature
Square wave output for added testing flexibility
Wide temperature range up to 1000°C / 1832°F
Analog bar display, MAX/MIN, data hold, relative mode, and fused alarm
CAT III 600 V safety rating
Specifications
| Item | HK88B |
|---|---|
| DC Voltage | 600mV / 4V / 4V* : ±(0.5% + 3d); 600V: ±(0.8% + 5d) |
| AC Voltage | 6V / 60V / 600V: ±(1.0% + 5d) |
| DC Current | 600μA / 6000μA / 60mA: ±(1.0% + 5d); 600mA: ±(2.0% + 5d); 6A / 10A: ±(3.0% + 5d) |
| AC Current | 600μA / 6000μA / 60mA: ±(1.8% + 5d); 600mA: ±(2.5% + 5d); 6A / 10A: ±(3.0% + 5d) |
| Resistance | 600Ω / 6kΩ / 60kΩ / 600kΩ / 6MΩ: ±(1.0% + 5d); 60MΩ: ±(1.2% + 8d) |
| Capacitance | 60nF: ±(4.0% + 25d); 600nF / 6μF / 60μF / 600μF: ±(4.0% + 15d); 6mF / 60mF: ±(10% + 5d) |
| Frequency | 60Hz / 600Hz / 6kHz / 60kHz / 600kHz / 6MHz / 10MHz: ±(0.5% + 4d) |
| Temperature (°C) | -20°C to 0°C: ±4°C; 0°C to 400°C: ±(2.0% + 3d); 400°C to 1000°C: ±(3.0% + 3d) |
| Temperature (°F) | -4°F to 50°F: ±5°F; 50°F to 750°F: ±(2.0% + 5d); 750°F to 1832°F: ±(3.0% + 5d) |
| Square Wave Output | 50 / 100 / 200 / 300 / 400 / 500 / 600 / 700 / 800 / 900 Hz / 1k / 2k / 4k / 5kHz: ±(1.0% + 5d) |
| True RMS | Yes |
| Display Count | 5999 |
| Diode Test | Yes |
| Continuity Buzzer | Yes |
| NCV | Yes |
| Live Wire Recognition | Yes |
| Analog Bar Display | Yes |
| LoZ AC/DC | Yes |
| V.F.C | Yes |
| LCD Type | EBTN |
| MAX/MIN | Yes |
| Data Hold | Yes |
| Relative Mode | Yes |
| Auto Power Off | Yes |
| Fused Alarm | Yes |
| Range Selection | Auto |
| Safety Rating | CAT III 600V |
| Battery Type | 1.5V AAA × 2 |
| Product Size | 155 × 72 × 45 mm |
| Product Weight | 254 g |
*The DC-voltage sub-range is written exactly as shown on your supplied specification image.
Applications
Professional electrical maintenance
HVAC and industrial service work
Electrical installation testing
Variable-frequency drive related checks
Signal and square-wave related diagnostics
Broader temperature testing in field service and maintenance
North America-focused distribution or OEM/ODM presentation
Popular FAQ
1. What is the main difference between HK88A and HK88B?
HK88B is the upgraded model. It offers a 5999-count display, V.F.C, square wave output, a much wider temperature range, and the supplied sheet shows FCC and ETL markings for HK88B only.
2. Why is HK88B stronger for premium-market positioning?
Because it combines broader functions with a stronger compliance-facing presentation. The supplied material highlights FCC and ETL (cETLus) markings on HK88B, which is especially valuable for North America-oriented sales channels. Intertek says the ETL Listed Mark indicates independent testing and certification to applicable North American safety standards.
3. Does HK88B support non-contact voltage detection?
Yes. It includes NCV and live wire recognition for quick field checks.
4. What is the benefit of V.F.C on HK88B?
V.F.C helps improve measurement usefulness in applications involving variable-frequency environments, making HK88B better suited for more advanced service work.
5. Can HK88B measure high temperatures?
Yes. HK88B measures up to 1000°C or 1832°F, making it much more versatile than HK88A for temperature-related testing.
6. Does HK88B have square wave output?
Yes. This is one of its differentiating features and gives it added flexibility in diagnostic and signal-related applications.
7. Is HK88B still compact enough for daily field work?
Yes. Despite its broader feature set, HK88B keeps the same compact body size as HK88A and remains easy to carry for daily use.
Recommended Positioning
HK88A
A practical all-rounder for daily electrical work, offering True RMS, LoZ, NCV, live wire recognition, capacitance, frequency, and basic temperature measurement.
HK88B
A more advanced, premium-positioned model for customers who want more capability, broader measurement coverage, higher display resolution, and stronger compliance-facing presentation through the FCC + ETL highlighted version.
