Uni-T UT221 Digital Current Meter

The Uni-T UT221 Digital Current Meter is a high-performance clamp meter designed for professional electricians and technicians. It offers accurate AC/DC current measurement up to 1000A, along with voltage, resistance, capacitance, frequency, and temperature measurements. The UT221 features a true RMS reading for non-linear loads, a large backlit LCD display, and a data hold function for easy reading. Its compact design and safety features make it ideal for industrial, commercial, and residential electrical troubleshooting.

Advantages

True RMS measurement ensures accuracy with distorted waveforms. The 1000A AC/DC current range covers most heavy-duty applications. Built-in non-contact voltage detection (NCV) enhances safety. The device is CAT III 1000V / CAT IV 600V rated for overvoltage protection. Auto-ranging and manual ranging options provide flexibility.

Suitable for

• Electrical maintenance and repair
• Industrial equipment troubleshooting
• HVAC system diagnostics
• Automotive electrical testing
• Residential wiring checks

Key specifications

• AC Current: 1000A (True RMS)
• DC Current: 1000A
• AC Voltage: 1000V
• DC Voltage: 1000V
• Resistance: 60MΩ
• Capacitance: 60mF
• Frequency: 10MHz
• Temperature: -40°C to 1000°C (with thermocouple)
• Display: 6000 counts backlit LCD
• Safety Rating: CAT III 1000V, CAT IV 600V
• Power: 2 x 1.5V AAA batteries

Recommendations

For professionals requiring a reliable and versatile clamp meter, the Uni-T UT221 is an excellent choice. Its true RMS capability and wide measurement range make it suitable for complex electrical environments. Always use appropriate personal protective equipment and follow safety guidelines when working with live circuits.