Major Tech MT790 1000A AC Power Clamp Meter

CAT IV 600V and CAT III 1000V
True RMS Clamp Meter, Power Meter and Digital Multimeter
Ø55mm Clamp Size
Measures AC current up to 1000 Amps
Measures AC voltage to 750V
USB interface for PC connection for Data Log Function
Analysis for single phase and balanced three phase system
Manual data memory
MIN/MAX and Data Hold
Auto Power Off
Complete with Colour Coded Test Leads
Manually Store/Recall up to 99 Data Logs
Large Dual LCD Display with 9999 Count and Bargraph

$324.50 inc. GST

UPC 6008229012013
SKU MT790 Category
Sparky Tools


The MT790 is a Single and 3-Phase 1000 Amp True RMS AC Power Clamp Meter. This power Clamp meter operates as a True RMS Clamp Meter, Power Meter, Multimeter and AC Voltage Detector. Measuring ranges include AC Current, Voltage, Frequency and Power including True Power, Apparent Power, Reactive Power and Active Power. Measures 1-Phase and balanced 3-Phase True Power (kW), Apparent Power (kVA), Reactive Power (kVAR) and Active Power (kWh), plus Power Factor and Phase Angle. Manually stores and recalls of up to 99 data logs. USB interface for connection to a PC for data logging function with included software.


Major Tech

Major Tech (Pty) Ltd was established in 1992, with a vision and mission of being the brand of choice, by consistently pushing the benchmark with innovative, high quality product developments, providing unparalleled service excellence and exceeding all expectations. The founder of Major Tech, comes with a vast knowledge and over 30 years of hands-on experience in the electrical industry and is the driving force behind the vision of the company. Being a values-based organisation, every decision and undertaking is underpinned by their core values.
Major Tech

Additional information

Weight .8 kg
Dimensions 30 × 20 × 10 mm



Function Range Resolution Accuracy
AC Current 40A – 1000A 0.1A ±(2.0% + 5 Digits)
AC Voltage 100 – 750V 0.1V ±(1.2% + 5 Digits)
Frequency 50Hz – 200HZ 1.0Hz ±(0.5% + 5 Digits)
Temperature -50 to 1300°C 1°C ±(5.0% + 3°C Digits)
Active Power 40A-1000A, 0.01KW-750.0KW <1000KW:0.01KW,100KW:0.1KW ±(3.0% + 5 Digits)
Apparent Power 40A-1000A, 0.01KVA-750.0KVA <1000KVAr:0.01KVAr, 100KVAr:0.1KVAr ±(3.0% + 5 Digits)
Reactive Power 40A-1000A, 0.01KVAr -750.0KVAr <1000KVA:0.01KVA, 100KVA:0.1KVA ±(3.0% + 5 Digits)
Power Factor 0.3-1 cap or ind. 0.001
Phase Angle 0°-90° ±(2.0°)
Active Energy 1-9999kWh 0.001kWh ±(3.0% + 2 Digits)
True RMS Measurements ACV, ACA
AC Bandwidth 50Hz to 60Hz
Digital Display 9999
Bargraph Yes
PC Interface Yes
Records Events and Trends Yes
Data Logging Yes
Non-Contact Voltage (NCV) Yes
Overrange Indication Yes
Jaw Size 55mm
Input Impedance >10MΩ VAC
Min Max Yes
Back Light Yes
Enclosure Injection moulded case
Low Battery Indication Yes
Battery 9V
Weight 631g
Dimensions 335 x 70 x 21mm
Safety Specs IEC61010-1 CAT IV 600V
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