Klein Tools CL390 AC/DC Digital Clamp Meter, 400 A, TRMS
Klein Tools CL390 AC/DC Digital Clamp Meter, 400 A, TRMS
$99
Price as of Nov 4, 2026. Prices and availability change; check the retailer for the current figure.
Check price at Amazon →Affiliate link. We may earn a commission.Reads current without breaking into the circuit, which is how you check what a string is really producing or what a load is really pulling. True RMS matters on an inverter output, where a cheaper meter reads a modified sine wave wrong and sends you chasing a fault that is not there.
Specs
| Model | CL390 |
|---|---|
| Range | 400 A AC/DC |
| Measures | Current, voltage, resistance, continuity, temperature |
| Includes | Non-contact voltage tester |
| Price source | Price read from the Amazon listing in a browser on 2026-11-04, not from PA-API. A stored figure, not a live one. |