Key facts
- Brand
- EXTECH
- Model
- EX720
- Category
- Other device
- Industry
- Electronics
- Documents
- 2
- Languages
- ZH · EN
- Last added
- 2026-10-07
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Extech EX720 Clamp Meter User Manual
This manual introduces the Extech EX720 800 A true‑RMS AC clamp meter, covering safety symbols, warnings and proper handling before use. Detailed descriptions of the instrument’s controls, display icons and measurement functions are provided.
Operational procedures for AC current, voltage, resistance, capacitance, frequency, temperature, continuity and diode testing are explained, along with data‑hold, peak‑hold, backlight and auto‑shutoff features. The final sections list technical specifications, general dimensions, battery replacement and maintenance guidelines. This manual is written in Chinese.
Extech EX720 specifications
| AC current range (max) | 800 A, accuracy ± (2.8% + 5d) |
|---|---|
| AC voltage range (max) | 600 V, accuracy ± (2.0% + 5d) |
| DC voltage range (max) | 600 V, accuracy ± (2.0% + 2d) |
| Resistance range (max) | 40 MΩ, accuracy ± (3.5% + 5d) |
| Capacitance range (max) | 40 µF, accuracy ± (4.0% + 10d) |
| Temperature measurement range | -20 °C to 760 °C, accuracy ± (3% + 5 °C) |
| Battery | 1 × 9 V alkaline |
| Auto shut‑off time | ≈ 25 minutes of inactivity |
All Extech EX720 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
What is the maximum AC current range of the EX720?
The meter can measure up to 800 A AC with an accuracy of ± (2.8 % + 5 digits).
How long does the EX720 stay on before it powers off automatically?
It automatically shuts off after about 25 minutes of inactivity.
What is the maximum AC current measurement range?
The meter supports a maximum AC current input of 800A.
From: EXTECH EX720 800A True RMS AC Clamp Meter User's Guide
How long does the automatic power off feature last before turning off?
The meter will automatically turn off after approximately 25 minutes to conserve battery life.
From: EXTECH EX720 800A True RMS AC Clamp Meter User's Guide