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The UNI-T UT890C is a professional-grade, 6000-count true RMS digital multimeter from the advanced UT890 series, designed for electricians, HVAC technicians, electronics engineers, and serious DIY enthusiasts . This versatile instrument combines high-precision measurement capabilities with an extensive range of features, including temperature measurement up to 1000°C and large capacitance testing up to 100mF, making it an indispensable tool for a wide variety of professional applications .
Engineered with user safety as a priority, the UT890C is certified to CAT II 1000V and CAT III 600V safety standards, ensuring reliable protection when working on distribution circuits and permanently installed equipment . Its large backlit LCD display, ergonomic rubber casing, and thoughtful design features like a built-in stand and pen slot make it both practical and durable for daily use .
6000-Count True RMS Display: High-resolution backlit LCD with 63×37mm screen for precise readings and excellent viewing angles .
Wide Measurement Range: Measures DC/AC voltage up to 1000V/750V, DC/AC current up to 20A, resistance up to 60MΩ, and capacitance up to 100mF [citations:5,8].
Temperature Measurement: Built-in K-type thermocouple support with included probe for readings from -40°C to 1000°C (-40°F to 1832°F) .
Large Capacitance Testing: Measures capacitors up to 100mF with fast response time of less than 12 seconds .
Frequency Measurement: Measures frequency from 10Hz up to 10MHz for advanced signal analysis .
Non-Contact Voltage (NCV) Detection: Safely identify live AC circuits with audio and visual alarms .
Advanced Safety Features: Automatic fuse blow detection, high voltage false detection up to 1000Vrms, and over-current alarm for currents ≥20A .
Comprehensive Testing: Includes hFE transistor test, diode test, continuity test (<10Ω acoustic indication), MIN/MAX recording, REL mode, and data hold .
User-Friendly Design: Built-in tilt stand, backlit display (30s duration), auto power-off after 15 minutes, and low battery indication (≤2.5V) .
High Safety Rating: Certified to CAT II 1000V / CAT III 600V safety standards .
The UNI-T UT890C delivers professional-grade accuracy across an extensive range of electrical and environmental parameters .
| Function | Range(s) | Basic Accuracy |
|---|---|---|
| DC Voltage (V) | 600mV/6V/60V/600V/1000V | ±(0.5% + 2 digits) |
| AC Voltage (V) | 6V/60V/600V/750V | ±(0.8% + 3 digits) |
| ACV Frequency Response | 10Hz ~ 10kHz | ±(0.1% + 5 digits) |
| DC Current (A) | 60μA/600μA/6mA/60mA/600mA/20A | ±(0.8% + 8 digits) |
| AC Current (A) | 60μA/600μA/6mA/60mA/600mA/20A | ±(1.0% + 12 digits) |
| Resistance (Ω) | 600Ω/6kΩ/60kΩ/600kΩ/6MΩ/60MΩ | ±(0.8% + 3 digits) |
| Capacitance (F) | 6.000nF to 100.0mF (9 ranges) | ±(3.0% + 10 digits) |
| Frequency (Hz) | 9.999Hz ~ 9.999MHz | ±(1.0% + 5 digits) |
| Temperature (°C) | -40°C ~ 1000°C | ±(1.0% + 3 digits) |
| Temperature (°F) | -40°F ~ 1832°F | ±(1.5% + 5 digits) |
| Item | Quantity |
|---|---|
| UNI-T UT890C Digital Multimeter | 1x |
| Test Leads | 1 pair |
| K-Type Temperature Probe | 1x |
| AA Batteries (1.5V) | 2x |
| User Manual | 1x |
| Gift Box Packaging | 1x |
Note: Some vendors may sell the meter without batteries, so it's advisable to check the listing before purchase .
The UT890 series includes two models with distinct features :
| Feature | UT890C | UT890D+ |
|---|---|---|
| Temperature Measurement | Yes (-40°C to 1000°C) | No |
| LIVE Wire Detection | No | Yes (single probe) |
| Best For | HVAC, temperature-critical applications | Electrical installation, line/neutral identification |
Connect the included K-type thermocouple to the meter, observing correct polarity.
Place the probe on the object to measure temperature from -40°C to 1000°C .
Application: Essential for HVAC diagnostics, furnace troubleshooting, refrigeration maintenance, and appliance repair .
Set the rotary switch to the capacitance position.
Fully discharge capacitors before testing to avoid damage to the meter.
Connect test leads in parallel with the capacitor.
Measures up to 100mF with fast response time of less than 12 seconds .
Application: Testing large motor start capacitors and power supply filtering.
Connect test leads in parallel to the circuit under test.
High voltage false detection protection safeguards against misconnection .
Set the rotary switch to the appropriate μA, mA, or A position .
Connect test leads in series with the circuit under test.
Bring the top of the meter near a live conductor.
The meter provides audio and visual alarms to indicate the presence of an AC electric field .
Set the rotary switch to the **Ω/))) ** position.
For resistance, connect test leads across the component (up to 60MΩ).
For diode test, connect leads across the diode to measure forward voltage drop (0~3V) .
Set the rotary switch to the Hz position.
Connect test leads to the signal source.
Insert the transistor into the dedicated test socket.
Read the transistor's DC current gain (β) directly from the display.
Automatic alarm alerts user when the fuse is blown or not properly installed .
Helps ensure the meter is always ready for safe current measurements.
MAX/MIN: Record and display the highest and lowest voltage/current readings .
REL Mode: Zero out test lead resistance or set a reference value for comparative measurements .
Backlight: Illuminates the display for 30 seconds for use in dark environments .
Auto Power Off: Conserves battery life by shutting down after 15 minutes of inactivity .
The UT890C incorporates multiple advanced safety features to protect users :
CAT II 1000V / CAT III 600V Rating: Suitable for measurements on distribution circuits and permanently installed equipment .
Fuse Blow Detection: Automatic alarm alerts user to fuse status .
Over-Current Alarm: Triggers when input current exceeds 20A .
Low Battery Indication: Prevents false readings due to insufficient power (≤2.5V) .
The UNI-T UT890C is an ideal all-in-one tool for:
Measuring vent temperatures, superheat, and subcooling with the included thermocouple .
Testing start/run capacitors up to 100mF.
Troubleshooting furnaces, air conditioners, and refrigeration systems.
Continuity testing for wiring and connections.
Precision component testing with 6000-count resolution.
Testing battery voltage and alternator output.
Sensor testing with frequency and temperature functions.
Appliance repair and maintenance.
Users consistently praise the UT890C for its excellent build quality, accuracy, and comprehensive feature set. Verified buyers describe it as a "отличная модель" (excellent model) with "неплохие по качеству щупы" (decent quality probes) and "все нужные функции" (all necessary functions) . The use of common AA batteries is frequently noted as a convenience .
One user noted that the NCV function detects live wires in walls through plaster up to 20-25mm . Another user commented that the "мультик по характеристикам и цене советую брать не пожалеете" (multimeter in terms of specifications and price, I recommend buying, you won't regret it) .
Some users noted minor drawbacks, including the lack of a carrying case and the absence of protective caps for the test leads . One user reported a continuity test that was somewhat slow for their needs . Overall, the UT890C receives consistently high marks for its value and functionality.
The UNI-T UT890C is the definitive choice for professionals who need temperature measurement capability combined with large capacitance testing in a rugged, reliable, and feature-rich multimeter. Its included K-type thermocouple, -40°C to 1000°C range, and 100mF capacitance measurement make it exceptionally well-suited for HVAC technicians, industrial maintenance professionals, and electronics engineers .
The unique fuse blow detection and comprehensive safety features (CAT II 1000V/CAT III 600V) provide peace of mind in demanding work environments . Whether you're an HVAC technician diagnosing a furnace, an industrial electrician troubleshooting control panels, an electronics engineer testing components, or a serious hobbyist, the UT890C delivers professional-grade performance at an accessible price point.
The UNI-T UT890C: Professional precision with temperature measurement and advanced safety features.
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