Digital Clamp Meter -- ACA, ACV, DCV, Ohm, Diode, Buzzer. The GCM-403 is digital clamp meter can measure AC/DC voltage, AC/DC current, resistance, diodes, continuity, capacitance, frequency and temperature. Tapered jaws, auto range, data hold, REL function and auto power off which makes it a superb tool for electricians. The GCM-407 is digital clamp meter with true RMS measurement. Featuring tapered jaws, a wide range (AC 600A/750V, DC 1000V max input), capacitance measurement as well as non-contact voltage sensing function and the ability to keep MAX/MIN or hold data and automatically power down make the GCM-407 suitable for almost any cable measurement task. New | Old | Description | GCM-403 | GCM-302 | Compared with the old model- Advantages | GCM-403 expanded measurement items: | DCA/Capacitance/Temperature/Frequency Counter and expandedfunctionalities: REL, Data Hold | Compared with the old model- Disadvantages | Smaller GCM-403 Clamp which is only ∮ 28mm | GCM-403 does not have Max Hold | GCM-407 | GCM-303 | Compared with the old model- AdvantagesGCM-407expandedmeasurement items: Voltage Range/Capacitance and expanded functionalities :No Contact Voltage (AC only)/ Min Hold/REL/Backlight |
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