The Honeytek HK3366T is a 2000-count 600A AC clamp meter with added temperature measurement for users who need electrical and thermal diagnostics in one handheld tool. It measures AC current up to 600A, AC/DC voltage, resistance up to 20MΩ, and temperature from -20°C to 1000°C / 0°F to 1832°F.
Compared with the HK3366, the HK3366T adds temperature testing, making it better suited for HVAC service, motor inspection, heating equipment maintenance, and appliance troubleshooting. It also includes NCV, live wire recognition, diode test, continuity buzzer, MAX/MIN, data hold, auto power off, and auto/manual range selection for efficient daily testing.
Features
- 2000-count display with 600A AC current range
- Temperature measurement from -20°C to 1000°C / 0°F to 1832°F
- AC/DC voltage and resistance measurement
- NCV and live wire recognition for fast non-contact checks
- Diode test and continuity buzzer for circuit diagnosis
- MAX/MIN and data hold for easier reading capture
- Auto/manual range selection and auto power off
- CAT III 600V safety rating
Specifications
| Function | Range | Accuracy |
|---|---|---|
| DC Voltage | 200mV | ±(0.5% + 3d) |
| 2V/20V/200V | ±(0.8% + 5d) | |
| 200V* | ±(1.0% + 5d) | |
| AC Voltage | 2V/20V/200V | ±(0.8% + 5d) |
| 600V | ±(1.0% + 5d) | |
| AC Current | 2A/20A/200A/600A | ±(2.5% + 10d) |
| Resistance | 200Ω | ±(1.0% + 10d) |
| 2kΩ/20kΩ/200kΩ/2MΩ | ±(0.8% + 5d) | |
| 20MΩ | ±(2.0% + 10d) | |
| Temperature (°C) | -20°C to 0°C | ±(5% + 4d) |
| 0°C to 400°C | ±(2% + 3d) | |
| 400°C to 1000°C | ±(3% + 3d) | |
| Temperature (°F) | 0°F to 50°F | ±(5% + 4d) |
| 50°F to 750°F | ±(2% + 3d) | |
| 750°F to 1832°F | ±(3% + 3d) |
General Features
Display: 35×22 mm
Jaw Size: Φ24.7×42.3 mm
Power: 3×1.5V AAA batteries
Size: 194×72×35 mm
Weight: 230g
Safety: CAT III 600V
Application
HVAC system installation and maintenance
Motor and compressor temperature monitoring
Electrical and thermal diagnostics in industrial settings
Energy efficiency audits
Comparison: HK3366 vs. HK3366T
Both models share core features including:
2,000-count display
AC current measurement up to 600A
DC/AC voltage, resistance, diode, continuity, NCV
Data hold, MAX/MIN, auto power-off
CAT III 600V safety
Identical physical dimensions and weight
Key Difference:
The HK3366T includes temperature measurement capability, making it suitable for HVAC and thermal applications, while the HK3366 does not measure temperature.











