testo 770-1 TRMS current clamp incl. battery and 1 set of measuring leadsWith this current clamp, you can easily manage any application environment, no matter how tight. The movable clamp limb can be fully retracted into the device so that you can, for example, grip tight cables in switch cabinets as if you were using a hook. Measuring in tight spaces has never been so convenient. The testo 770-1 current clamp is also easier and safer to operate than ever before. It automatically recognises and selects AC/DC and other electrical parameters such as resistance, continuity, diode and capacitance. It can also be used to measure the starting current. And the two-line display shows your measurement values clearly and concisely.Features:Completely retractable clamp legs for maximum flexibilityAuto-AC/DCLarge two-line displayThe testo 770-1 current clamp is ideal for contactless current measurement on close-coupled current cables or small-diameter conductors. The unique gripping mechanism allows you to grip each individual cable easily and safely.Technical data: Dimensions 243 x 96 x 43 mm Operating temperature -10 to +50 °C Warranty 2 years Storage temperature -15 to +60 °C Weight 378 g Measurement category CAT IV 600V; CAT III 1000V Approvals TÜV; CSA; CE DC voltage DC Measuring range / resolution 4,000 V / 1 mV 40.00 V / 10 mV 400.0 V / 100 mV 600 V / 1 V Accuracy ±(0.8 % v. Mw. + 3 digit) Alternating voltage AC Measuring range / resolution 4,000 V / 1 mV 40.00 V / 10 mV 400.0 V / 100 mV 600 V / 1 V Accuracy ±(1.0 % of Mw. + 3 digit) Direct current DC Measuring range / resolution 400 A / 0.1 A Accuracy ±(2 % of Mw. + 5 digit) Alternating current AC Measuring range / resolution 400 A / 0.1 A Accuracy ±(2 % v. Mw. + 5 digit) Resistance Measuring range / resolution 400.0 Ohm / 0.1 Ohm 4,000 kOhm / 1 Ohm 40.00 kOhm / 10 Ohm 400.0 kOhm / 100 Ohm 4,000 MOhm / 1 kOhm 40,000 MOhm / 10 kOhm Accuracy ±(1.5 % v. Mw. + 3 digit) Capacitance Measuring range / resolution 51.20 nF / 0.01 nF 512.0 nF / 0.1 nF 5.120 ?F / 0.001 ?F 51.20 ?F / 0.01 ?F 100 ?F / 0.1 ?F Accuracy ±(1.5 % of Mw. + 5 digit) Frequency Measuring range / resolution 99.99 Hz / 0.01 Hz 999.9 Hz / 0.1 Hz 9.999 kHz / 1 Hz Accuracy ±(0.1 % + 1 digit) Device and measuring functions Diode test yes Continuity test yes Display illumination yes Hold yes MinMax yes True RMS yes Starting current yes Display (Counts) 4000