Testo 770-1 Clamp Meter, Max Current 400A ac, 400A dc CAT 3 1000 V, CAT 4 600 V

  • RS Stock No. 905-5891
  • Mfr. Part No. 0590 7701
  • Manufacturer Testo
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): CN
Product Details

Testo Clamp Meter

The Testo clamp meter is a new age device that measures the current range between 0.1 to 400A AC/DC and voltage range between 1mV to 600VAC/DC. The user can fully retrace the movable pincer arm into an instrument for various functions such as tightly grabbing the packed cables in switching cabinets like a hook. This device helps in convenient measurements this in tight spots. It includes a 3xAAA micro-batteries and 1 set of measuring cables.

Features and Benefits

0.1ohm to 40Mohm resistance measurement
0.001Hz to 10kHz frequency measuring
0.001μF to 100μF capacitance measuring
Innovative clamp mechanism for easy operation in narrow spaces
Continuity testing
Diode test
No more problems grabbing cables in confined spaces
Clear visible measurement results
4,000 display (counts)
Inrush current measurement
Automatic measurement parameter detection
Operating temperature ranges between -10°C and 50°C


Oil and gas
Food and beverage


EN 61326-1
EN 61010-2-032
EN 61140
CAT IV 600V, CAT III 1,000V safety rated

Attribute Value
Absolute Maximum AC Current Measurement 400A ac
Absolute Maximum DC Current Measurement 400A dc
Absolute Maximum AC Voltage Measurement 600V ac
Absolute Maximum DC Voltage Measurement 600V dc
Absolute Maximum Resistance Measurement 40MΩ
Model Number 770-1
AC Current Measurement Resolution 100mA
DC Current Measurement Resolution 100mA
Best DC Current Accuracy ±(2% rdg + 5dgts)
Clamp Meter Type Multifunction Clamp
Best AC Current Accuracy ±(2% rdg + 5dgts)
Best AC Voltage Accuracy ±(1% rdg + 3dgts)
Best DC Voltage Accuracy ±(0.8% rdg + 3dgts)
AC Voltage Measurement Resolution 1mV
Safety Category CAT 3 1000 V, CAT 4 600 V
Height 43mm
Display Type LCD
Safety Category Level CAT 3, CAT 4
Minimum Operating Temperature -10°C
True RMS Yes
Functions Measured AC Current, AC Voltage, Capacitance, DC Current, DC Voltage, Frequency, Resistance
DC Voltage Measurement Resolution 1mV
Safety Category Voltage 600 V, 1000 V
Weight 302g
Maximum Operating Temperature +50°C
Length 243mm
Width 96mm
Power Source Battery
Dimensions 243 x 96 x 43mm
9 Within 5 working day(s) (Global stock)
18 Within 5 working day(s) (Global stock)
Price (ex. GST) Each
$ 286.88
(exc. GST)
$ 329.91
(inc. GST)
Per unit
1 +
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