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The KLEIN TOOLS CL390 is a lightweight, battery-powered digital clamp meter featuring auto-ranging AC/DC current measurement up to 400 Amps, integrated non-contact voltage detection in the clamp jaw, and a high-visibility reverse contrast LCD display. Designed for professionals, it offers True RMS accuracy, hands-free operation with a magnetic hanger option, and meets CATIII 600V safety standards, making it an essential tool for precise and safe electrical diagnostics.






| Manufacturer | KLEIN TOOLS |
| Part number | CL390 |
| Item Weight | 236 g |
| Product Dimensions | 21.46 x 8.92 x 3.84 cm; 235.87 g |
| Batteries | 1 AAA batteries required. (included) |
| Item model number | CL390 |
| Size | 1.6'' (4.1 cm) |
| Color | Black |
| Style | 400A AC/DC Current |
| Material | ABS/Electronics |
| Pattern | Clamp Meter |
| Power source type | Battery Powered |
| Item Package Quantity | 1 |
| Specification met | CE, CATIII 600V, Class 2, Double Insulation |
| Special Features | Automatically Ranging True Root Mean Squared (TRMS) Measurement Technology for Accuracy; AC/DC Current Measurement; High Visibility Reverse Contrast LCD; NCVT |
| Included components | AC/DC Digital Clamp Meter |
| Batteries Included? | Yes |
| Batteries Required? | No |
| Battery Cell Type | Alkaline |
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