Measure AC current with this handheld, easy-to-use, 30mm jaw clamp meter from Extech.
The upgraded version of Extech's MA440 clamp meter, the MA443 includes expanded functionality. The main upgrade is true RMS - unlike the MA440, the MA443 will maintain accurate results when testing AC even on irregular waveforms and circuits. It also includes a type K temperature measurement function, built-in torch and has a MAX/MIN mode for measuring the maximum/minimum values taken over a period of time.
Extech's MA443 also doubles up as a fully functional digital multimeter. It can measure AC current to 400A using the jaws, but also includes test leads for measurements of AC/DC voltage, resistance, capacitance, duty cycle, diode and continuity.
This clamp meter also includes a built-in non-contact voltage detector, data hold function and a large, backlit LCD display.
The MA443 is CAT III 600V safety rated.
Max resolution shown in brackets.
AC Current | 400.0A (1mA) true RMS |
Basic Current Accuracy | ±1.8% |
DC Voltage | 600V (0.1mV) true RMS |
AC Voltage | 600V (1mV) |
Basic Voltage Accuracy | AC: ±1.2% DC: ±0.8% |
Non-Contact Voltage | 100 to 600V |
Resistance | 40MΩ (0.1Ω) |
Capacitance | 40mF (0.01nF) |
Frequency | 1MHz (0.01Hz) |
Temperature (Type K) | -40 to 1000°C (1°C) |
Duty Cycle | Yes |
Diode/Continuity | Yes |
Dimensions | 228 x 77 x 41mm |
Weight | 265g |