Honeytek HK266C builds on the HK266’s capabilities by adding temperature measurement in both °C and °F, making it a versatile tool for HVAC, industrial, and electrical applications. This True RMS clamp meter measures AC current (up to 1000A), voltage, resistance, and continuity while providing accurate temperature readings from -20°C to 1000°C (-0°F to 1832°F). Its rugged design, CAT III 1000V protection, and practical features like NCV and data hold ensure efficiency and safety.
Highlights
✅ True RMS + Temperature – Measures electrical parameters and temperature for multifunctional use.
✅ Wide Temp Range – Supports -20°C to 1000°C (-0°F to 1832°F) with high accuracy.
✅ 1000A AC Current Clamp – Safely measures high-current circuits without breaking the line.
✅ Enhanced Safety – CAT III 1000V rated with non-contact voltage detection (NCV).
✅ Smart Functions – Auto power-off, data hold, continuity buzzer, and backlit display (if applicable).
Specifications Table
| Category | Range | Accuracy |
|---|---|---|
| DC Voltage | 200mV / 2V / 20V / 200V | ±(0.5% + 1d) / ±(0.5% + 3d) |
| 1000V | ±(0.8% + 3d) | |
| AC Voltage | 200V / 750V | ±(1.0% + 5d) / ±(1.2% + 5d) |
| AC Current | 20A / 200A / 1000A | ±(2.5% + 5d) / ±(2.5% + 10d) |
| Resistance | 200Ω / 20kΩ / 2MΩ | ±(1.0% + 8d) |
| 20MΩ / 500MΩ | ±(2% + 2d) / ±(5.0% + 2d) | |
| Temperature (°C) | -20°C to 0°C | ±3°C |
| 0°C to 400°C | ±(2.0% + 3d) | |
| 400°C to 1000°C | ±(3.0% + 3d) | |
| Temperature (°F) | 0°F to 50°F | ±5°F |
| 50°F to 750°F | ±(3.0% + 3d) | |
| 750°F to 1832°F | ±(3.0% + 3d) | |
| General Features | ||
| – Display Counts | 1999 | |
| – Jaw Size | Φ53mm | |
| – Safety Rating | CAT III 1000V | |
| – Battery | 2×1.5V (AA) | |
| – Dimensions | 96×235×46 mm | |
| – Weight | 330g |
Application
🔹 HVAC & Refrigeration – Checks heating/cooling systems, compressor currents, and pipe temperatures.
🔹 Industrial Equipment – Monitors motor loads, electrical panels, and machinery temps.
🔹 Electrical Troubleshooting – Diagnoses circuits, verifies live wires, and tests insulation.
🔹 Automotive & Engineering – Measures battery systems, exhaust temps, and high-amp circuits.
Key Differences
HK266C includes temperature measurement (-20°C to 1000°C / 0°F to 1832°F), while HK266 does not.
All other specifications (voltage, current, resistance, safety, size, etc.) are identical.