Klein Tools CL390 Digital Clamp Meter – 400A Auto‑Ranging, $66 Deal
The Klein Tools CL390 offers auto‑ranging, TRMS accuracy, and a high‑visibility LCD for reliable field measurements. At $66 with free shipping, it delivers professional performance without breaking the budget.
The CL390 combines a rugged clamp jaw with a reverse‑contrast LCD, making it easy to read data in bright or dim conditions. Auto‑ranging and True RMS technology ensure accurate readings across AC and DC currents up to 400 A, while the built‑in thermocouple adds temperature checks without extra accessories.
Included accessories—test leads, a magnetic hanger, and a carrying case—turn the meter into a ready‑to‑go kit for electricians, HVAC technicians, or DIY enthusiasts. Its battery‑efficient design and durable housing promise years of dependable service, aligning with 2026’s focus on long‑term value and low total cost of ownership.
We recommend the CL390 for anyone needing a reliable, all‑in‑one testing solution that balances precision, durability, and price. The current deal brings professional‑grade capability within reach of both seasoned pros and serious hobbyists.