Testo 770 – 1 – Clamp meter

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Features

Unique hook-on function separates and grabs wires, without using your hands
Retractable post makes hook release fast and easy
Inrush (starting) current capture, APO (Auto Power Off), and Min / Max / Hold

SPECIFICATIONS Testo 770 – 1 – Clamp meter

DC Voltage
Measuring range	1.0 to 600.0 V
Resolution	max. 1 mV
Accuracy	± (0.8 % of mv + 3 Digit)

AC Voltage
Measuring range	1.0 mV to 600.0 V
Resolution	max. 1 mV
Accuracy	± (1 % of mv + 3 Digit)

DC Current
Measuring range	0.1 to 400 A
Resolution	max. 0.1
Accuracy	± (2 % of mv + 5 Digit)

AC Current
Measuring range	0.1 to 400 A
Resolution	max. 0.1 A
Accuracy	± (2 % of mv + 5 Digit)

Resistance
Measuring range	0.1 to 40.00 MOhm
Resolution	max. 0.1 Ohm
Accuracy	± (1.5 % of mv + 3 Digit)

Capcitance
Measuring range	0.001 μF to 100.0 μF
Resolution	max. 0.01 nF
Accuracy	± (1.5 % of mv + 5 Digit)

Frequency
Measuring range	0.01 Hz to 9999 kHz
Accuracy	±(0.1 % + 1 Digit)

General Technical data
Operating humidity	0 to 80.0 %rH
Weight	13.33 oz. / 378 g
Dimensions	9.8 x 3.8 x 1.7 in. / 249 x 96 x 43 mm
Operating temperature	14.0° to 122.0 °F / -10 to +50 °C
Product colour	Black
Standards	EN 61326-1; EN 61010-2-032; EN 61140
Battery type	3 x AAA
Display type	LCD
Display size	2 lines
Interface	2 measuring jacks
Storage temperature	5.0° to 140.0 °F / -15 to +60 °C
Overvoltage Category	CAT IV 600V; CAT III 1000V
Authorizations	CSA; CE
Internal_resistance	11 MOhm (AC / DC)

Instrument Measurement Functions
Diode test	Yes
Continuity testing	Yes
Display ligthing	Yes
Hold	Yes
MinMax	Yes
True RMS	Yes
Inrush current measurement	Yes
Display (counts)	4.000
Autom. measurement parameter detection	Yes

Introduction Testo 770 – 1 – Clamp meter

The Testo 770-1 hook-clamp meter is ideally suited for electrical work in HVAC applications. Testo’s unique hooking clamp design allows you to separate and grab wires easily. The easy hook-off retractable post releases the wires when testing in tight spaces, enabling safe work without using your hands.

The Testo 770-1 features True RMS (TRMS) measurement for accurate readings with non-linear loads and distorted waveforms. The automatic measurement range selection simplifies operation and minimizes user error, while the large backlit display ensures clear visibility in various lighting conditions. Enhanced safety is provided by the non-contact voltage detection feature.

The Testo 770-1 offers versatile measurement functions, including voltage, current, resistance, and continuity, making it suitable for various electrical testing applications.