Non-contact measurement on tightly packed cables is really easy and reliable with the testo 770-3 clamp meter. Its innovative grab mechanism will make your work easy. The most powerful model in the clamp meter series, it offers lots of additional functions for those challenging tasks that you are faced with on a daily basis, e.g. connection to the testo Smart App and other Testo measuring instruments. Thanks to its increased resolution, the clamp meter delivers highly precise results even in the lower current range.






Testo 770-3 Clamp Meter
Ref: 189602
Non-contact measurement on tightly packed cables is really easy and reliable with the testo 770-3 clamp meter. Its innovative grab mechanism will make your work easy. The most powerful model in the clamp meter series, it offers lots of additional functions for those challenging tasks that you are faced with on a daily basis, e.g. connection to the testo Smart App and other Testo measuring instruments. Thanks to its increased resolution, the clamp meter delivers highly precise results even in the lower current range.
- Increased accuracy in the lower current range thanks to improved resolution
- TRMS measurement
- Auto AC/DC for voltage and large two-line display
- Bluetooth connection to testo Smart App and other Testo measuring instruments
- Easy to operate thanks to the retractable pincer arm
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| Product Category |
Specification for: Testo 770-3 Clamp Meter
| A current measuring range | yes |
| Accuracy | (10 % of mv + 5 Digit) |
| Authorizations | CSA; CE |
| Autom. measurement parameter detection | yes |
| Battery type | 3 AAA micro batteries |
| Bluetooth | yes |
| Connectable probes | 1 x temperature probe (adapter required for type K thermocouples) |
| Continuity testing | yes |
| Dimensions | 249 x 96 x 43 mm |
| Diode test | yes |
| Display (counts) | 6000 |
| Display ligthing | yes |
| Display size | 2 lines |
| Display type | LCD (Liquid Crystal Display) |
| Hold | yes |
| In Box | testo 770-3 clamp meter with Bluetooth 1 x set of measuring leads carrying case 3 x AAA batteries and test protocol |
| Inrush current measurement | yes |
| Interface | 2 measuring jacks |
| Internal_resistance | 11 MOhm (AC / DC) |
| Measuring range | -1.00 to +1.00 |
| MinMax | yes |
| MPN | 0590 7703 02 |
| Operating humidity | 0 to 80.0 %RH |
| Operating temperature | -10 to +50 C |
| Overvoltage Category | CAT IV 600V; CAT III 1000V |
| Power Measurement | yes |
| Product colour | Black |
| Range | Electrical measurement |
| Resolution | 0.01 |
| Standards | EN 61326-1; EN 61010-2-032; EN 61140 |
| Storage temperature | -15 to +60 C |
| System requirements | requires iOS 11.0 or newer; requires Android 6.0 or newer; requires mobile end device with Bluetooth 4.0 |
| Temperature measurement with adapter | yes |
| True RMS | yes |
| Type | Clamp Meters |
| WebDescription | Non-contact measurement on tightly packed cables is really easy and reliable with the testo770-3 clamp meter. Its innovative grab mechanism will make your work easy. The most powerful model in the clamp meter series it offers lots of additional func |
| Weight | 378 g |