Honeytek HK266 is a high-precision 2,000-counts True RMS (TRMS) clamp meter designed for professional electricians and technicians. It features a large jaw (Φ53mm) for measuring AC current up to 1000A, along with DC/AC voltage, resistance, continuity, and live wire detection. With CAT III 1000V safety rating, manual range selection, and a durable design, this clamp meter ensures reliable performance in demanding electrical environments.
Highlights
✅ True RMS Measurement – Accurately measures non-linear signals for precise readings.
✅ Wide Measurement Range – Supports AC current up to 1000A, DC/AC voltage, and resistance.
✅ Safety Compliance – CAT III 1000V rated for safe use in high-voltage applications.
✅ User-Friendly Functions – Includes NCV (Non-Contact Voltage), continuity buzzer, data hold, and auto power-off.
✅ Robust Build – Compact, lightweight (330g), and ergonomic for easy handling.
Specifications
| 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) | |
| 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
🔹 Industrial Maintenance – Ideal for troubleshooting motors, transformers, and power distribution systems.
🔹 HVAC & Electrical Installations – Measures high-current loads and verifies circuit integrity.
🔹 Automotive Diagnostics – Checks battery voltage, charging systems, and electrical faults.
🔹 Home & Workshop Use – Detects live wires, tests outlets, and ensures electrical safety.


