21550t Professional Clamp Meter – 40 a/400 a Ac‑dc, Brown

Introducing the Southwire 21550T Professional Clamp Meter, a rugged brown‑finished instrument built for fast, accurate current measurement in both AC and DC circuits. Its compact 1.2‑inch jaw opening lets you clamp around conductors without disconnecting power, while the high‑resolution LCD delivers crystal‑clear readings at 0.1 A and 10 mA increments. Engineered for durability, this meter thrives in workshop, field, or industrial environments.

Why it matters: With dual‑mode capability and a wide bandwidth of 50‑400 Hz, you can trust the 21550T to capture true RMS values on anything from residential lighting to heavy‑duty motor drives. The built‑in temperature probe expands diagnostic reach, letting you monitor heat alongside current for comprehensive troubleshooting.

• Dual AC/DC Measurement: Seamlessly switch between 40 A AC and 400 A AC/DC ranges for versatile electrical testing.
• High Accuracy: +/-2% reading with 9‑digit resolution for AC and 5‑digit resolution for DC ensures precise data every time.
• Enhanced Safety CAT III Rating: Designed to withstand up to 600 V, providing reliable protection on commercial and industrial circuits.
• Integrated Temperature Probe: Type K sensor with banana plug adapter adds thermal monitoring for motor and equipment health checks.
• Portable Power Solution: Operates on three AAA batteries, includes a sturdy carrying case, test leads, and a full instruction manual for on‑the‑go professionals.

Ready for the job: Whether you’re a seasoned electrician, HVAC technician, or DIY enthusiast, the Southwire 21550T delivers the speed, accuracy, and durability you need to diagnose and maintain electrical systems confidently. Its ergonomic design, clear display, and comprehensive accessory kit make it a go‑to tool for any current‑sensing task, helping you work faster and safer.