The testo 770-1 Hook Clamp Meter is ideally suited for electrical work in HVAC applications. Testo’s unique hooking clamp design can be used to separate, then grab wires. The easy hook-off retractable post releases the wires when testing in tight spaces. You can safely work without using your hands.| DC voltage |
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| | Resolution | 4.000 V / 1 mV
40.00 V / 10 mV
400.0 V / 100 mV
600 V / 1 V |
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| | Accuracy | ±(0.8 % of mv + 3 Digit) |
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| AC voltage |
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| | Resolution | 4.000 V / 1 mV
40.00 V / 10 mV
400.0 V / 100 mV
600 V / 1 V |
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| | Accuracy | ±(1.0 % of mv + 3 Digit) |
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| General technical data |
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| | Dimensions | 10 x 4 x 2 in. / 243 x 96 x 43 mm |
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| | Operating temperature | 14° to 122 °F / -10 to +50 °C |
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| | Storage temperature | 5° to 140 °F / -15 to +60 °C |
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| | Overvoltage Category | CAT IV 600V; CAT III 1000V |
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| | Authorizations | TÜV; CSA; CE |
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| Accuracy | ±(2 % of mv + 5 Digit) |
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| Accuracy | ±(2 % of mv + 5 Digit) |
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| Resolution | 51.20 nF / 0.01 nF
512.0 nF / 0.1 nF
5.120 µF / 0.001 µF
51.20 µF / 0.01 µF
100 µF / 0.1 µF |
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| Accuracy | ±(1.5 % of mv + 5 Digit) |
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| Accuracy | ±(0.1 % + 1 Digit) |
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| Delivery Scope | testo 770-1 hook-clamp digital multimeter 400 A with TRMS and Inrush includes batteries and 1 set of measuring cables |
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Product Family
All orders are shipped same-day if the order is received by 1:00 PM Central Time. We ship worldwide.
UPS Hoilday Delivery Schedule
For more infomation about Returns visit Returns
For more informatrion about Warranty visit Warranty page.
You can also find answers to some common questions on our FAQ page
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