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The UNI-T UT213C is a feature-rich, 400A True RMS digital clamp meter designed to meet the rigorous demands of professional electricians and HVAC/R technicians . As the most advanced model in the UT213 series, it combines essential electrical measurement capabilities with the added versatility of temperature measurement, making it a comprehensive troubleshooting tool for industrial, commercial, and residential applications .
Engineered with safety and durability in mind, the UT213C boasts a CAT III 600V safety rating, ensuring reliable protection in high-energy environments . Its slim 30mm jaw opening and integrated flashlight make it exceptionally practical for working in cramped electrical panels and dimly lit workspaces . Whether you're maintaining motors, diagnosing HVAC systems, or performing general electrical repairs, the UT213C delivers professional-grade performance in a rugged and portable package .
AC/DC Current Measurement: Measures both AC and DC current up to 400A (40A/400A ranges) with high accuracy .
True RMS Technology: Provides accurate readings even with non-linear or distorted AC waveforms, essential for modern electronics and variable frequency drives .
Temperature Measurement: Built-in support for K-type thermocouples, measuring from -40°C to 1000°C (-40°F to 1832°F) — an essential feature for HVAC/R diagnostics .
Wide Voltage Range: Measures both AC and DC voltage up to 600V .
Comprehensive Testing: Includes Resistance (40MΩ), Capacitance (40mF), Frequency (1MHz), Diode, and Continuity tests .
Non-Contact Voltage (NCV) Detection: Safely and quickly detects live AC voltage without making physical contact .
Built-In Flashlight & Backlight: Integrated work light illuminates dark panels, while the backlit 4000-count LCD ensures clear readings in low-light conditions .
User-Friendly Features: Auto-ranging, Data Hold, MAX/MIN recording, Relative (REL) mode, and Auto Power Off .
Compact & Ergonomic: Lightweight design (231.7g) with a 30mm jaw opening, ideal for accessing tight spaces .
Safety Certified: CAT III 600V with CE, UKCA, and cETLus certifications .
The UNI-T UT213C delivers professional-grade accuracy across a comprehensive range of electrical parameters .
| Function | Range | Basic Accuracy |
|---|---|---|
| AC Current (A) | 40A / 400A | ±(2.5% + 5 digits) |
| DC Current (A) | 40A / 400A | ±(2.0% + 3 digits) |
| AC Voltage (V) | 4V / 40V / 400V / 600V | ±(1.2% + 5 digits) |
| DC Voltage (V) | 400mV / 4V / 40V / 400V / 600V | ±(0.8% + 1 digit) |
| Resistance (Ω) | 400Ω / 4kΩ / 40kΩ / 400kΩ / 4MΩ / 40MΩ | ±(1.0% + 2 digits) |
| Capacitance (F) | 40nF / 400nF / 4μF / 40μF / 400μF / 4mF / 40mF | ±(4.0% + 5 digits) |
| Frequency (Hz) | 10Hz ~ 1MHz | ±(0.1% + 4 digits) |
| Temperature (°C) | -40°C ~ 1000°C | ±(1.0% + 3 digits) |
| Temperature (°F) | -40°F ~ 1832°F | ±(1.0% + 6 digits) |
| Item | Quantity |
|---|---|
| UNI-T UT213C Digital Clamp Meter | 1x |
| Test Leads | 1 pair |
| K-Type Point Contact Temperature Probe | 1x |
| AAA Batteries (1.5V) | 3x |
| Carrying Bag | 1x |
| User Manual | 1x |
| Gift Box Packaging | 1x |
Press the trigger to open the 30mm clamp jaws and clamp around one conductor only.
The True RMS technology ensures accuracy even with distorted waveforms .
Set the rotary switch to the V position.
Press SELECT to choose between AC and DC measurement.
Connect test leads in parallel to the circuit under test.
Set the rotary switch to the °C/°F position.
Connect the included K-type thermocouple to the meter.
Press SELECT to choose between Celsius (°C) or Fahrenheit (°F).
Range: -40°C to 1000°C for maximum versatility in HVAC/R and industrial applications .
Set the rotary switch to the NCV position.
Bring the top of the clamp jaw near a live conductor or outlet.
The meter provides audio and visual indication when AC voltage is detected .
Set the rotary switch to the Ω/continuity/diode position.
Press SELECT to cycle through functions.
Diode test provides approximately 3.0V open circuit voltage .
Set the rotary switch to the capacitance position.
Fully discharge capacitors before testing to avoid damage.
Connect test leads in parallel with the capacitor.
Set the rotary switch to the Hz position.
Connect test leads to the signal source.
Press MAX/MIN to record and display the highest and lowest readings.
Press REL to store a reference value for comparative measurements .
Short press HOLD to freeze the current reading on the display.
Long press to turn the LCD backlight on/off.
Dedicated Flashlight button turns on the built-in work light for dark environments .
The UT213C is the flagship model in the UT213 series, offering the most comprehensive feature set :
| Feature | UT213A | UT213B | UT213C |
|---|---|---|---|
| AC Current | 400A | 400A | 400A |
| DC Current | ❌ | ✓ | ✓ |
| Temperature | ❌ | ✓ | ✓ |
| Capacitance | 100μF | 40mF | 40mF |
| True RMS | ❌ (Average) | ✓ | ✓ |
| Diode Test | ~1.5V | ~3.0V | ~3.0V |
| MAX/MIN | ❌ | ✓ | ✓ |
| Relative Mode | ❌ | ✓ | ✓ |
| Best For | Basic AC needs | General purpose | HVAC/R + Full features |
The UNI-T UT213C is an ideal all-in-one tool for:
Troubleshooting control panels and machinery up to 400A.
Measuring DC current on battery backups and control circuits.
On-site troubleshooting of a wide variety of electrical equipment.
Quick verification of power supplies and components.
One tool for voltage, current, temperature, and capacitance checks .
Perfect for serious hobbyists who need professional-grade features.
Troubleshooting appliances, wiring, and electronics.
The UT213C stands out as a professional-grade, all-in-one clamp meter that eliminates the need for multiple tools .
The UT213C incorporates multiple safety features to protect users :
CAT III 600V Rating: Suitable for measurements on distribution circuits and permanently installed equipment .
Input Protection: Comprehensive protection on all ranges prevents damage from misconnection .
Low Battery Indication: Alerts user when battery voltage drops below 3.6V to maintain accuracy .
NCV Detection: Allows safe voltage checking without physical contact .
Warning: Always use caution when working with voltages above 60V DC or 30V AC rms. Never apply voltage exceeding 600V between terminals and ground .
The UNI-T UT213C is the definitive choice for professionals who demand a versatile, feature-rich clamp meter without compromising on quality or safety. Its True RMS accuracy, temperature measurement capability, and 40mF capacitance range make it exceptionally well-suited for HVAC/R technicians, industrial electricians, and maintenance engineers .
While it offers professional-grade features, its compact 30mm jaw opening, built-in flashlight, and lightweight 231.7g design ensure it remains practical and portable for everyday use .
If your work involves motors, HVAC systems, control panels, or any application requiring both electrical and temperature diagnostics, the UT213C's comprehensive feature set and rugged construction make it a reliable workhorse that will serve you faithfully for years.
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