F01-F09 RMS Multimeter clamps for measuring voltage, current, resistance, temperature, power and frequency. It measures RMS for all currents, sinusoidal and distorted. Enhanced ergonomics for ease of use. Auto AC/DC, Auto-range, Hold, Backlit LCD screen. Optimal safety: V-live protection, EN 61010-1, 600V Cat III. Compliant with IEC 61010 CAT II 1000 V / CAT III 600 V / CAT IV 300 V.
The FO1‑FO9 series are compact, high‑performance clamp multimeters that measure voltage, current, resistance, temperature, power and frequency. They offer true‑RMS measurement for all currents, automatic AC/DC range selection, and a range of special functions such as phase‑rotation indication, inrush‑current measurement and programmable continuity thresholds.
The manual describes safety features like the V‑live function that warns of dangerous voltages, automatic lead‑resistance compensation, and an auto‑off timer to preserve battery life. It also lists the accessories supplied (carrying case, test leads, battery, adapters) and provides detailed technical specifications, dimensions, operating conditions and compliance standards.
| Voltage range (AC) | 0.20 V to 600 V eff. / 900 V peak |
|---|---|
| Voltage range (DC) | 0.20 V to 600 V |
| Current range (AC) | 0.20 A to 400 A eff. / 600 A peak |
| Current range (DC) | 0.20 A to 400 A |
| Accuracy (voltage) | ±1 % + 2 cts |
| Bandwidth | 1 kHz |
| Dimensions | 70 × 193 × 37 mm |
| Weight | 260 g |
| Power supply | Standard 9 V battery (6LF22) |
Pressing the Hold button automatically performs lead‑resistance compensation (Q Zero).
Each clamp comes with a carrying case, two test probe leads, a 9 V battery, the user manual, a K‑thermocouple adapter for FO3 and FO7, and crocodile clips for FO5 and FO9.
The clamps can measure AC/DC voltage, AC/DC current, resistance (with continuity and diode test), frequency, single‑ and three‑phase power, phase rotation, motor inrush current, temperature (ambient and surface), and support optional sensor adapters.