As the flagship model of the UT61 series, it offers high-precision measurement, fast response times and professional-grade safety protection, making it an essential tool for applications such as electronic R&D, household appliance repair, electrical maintenance and university laboratory experiments.
UT61E Digit Multimeter DM4-Class with key advantages including 22,000-count high resolution, true RMS measurement and full-range overload protection, the product is equipped with an RS232 data transmission interface to meet both basic measurement and data logging requirements. Combining portability with professional performance.
Xi'an Mingxi Taida Information Technology Co., Ltd. brings over 12 years of industry expertise to deliver cutting-edge measurement and control solutions.With progressed computerization forms and strict quality control, we guarantee each item meets the most noteworthy guidelines for proficient applications.
The UT61 series comprises UNI-T’s mid-range professional multimeters,the UT61E Digit Multimeter DM4-Class 22000 Count is the top-of-the-range model in the series, offering high accuracy, full functionality and data transmission.
The UT61E Digit Multimeter focuses on delivering high precision at an affordable price. It bridges the gap between entry-level and high-end benchtop models, meeting the needs of electronics engineers and senior technicians for precise measurements.
User Experience
• Dual-display design: Extra-large LCD digital display + 46-segment analogue bar graph displayed simultaneously, offering precise digital readings and an intuitive visual representation of trends.
• High-speed response: Instantaneous triggering in the continuity and diode test modes with zero delay; the analogue bar graph tracks signal changes in real time.
• Auto/Manual range selection: One-touch switching, suitable for both rapid measurements and scenarios requiring precise range locking.
Safety and Protection
• CAT IV 600V/CAT III 1000V safety rating: Complies with CE, RoHS and GS certifications; resistant to high-voltage surges.
• Full-range overload protection: Protection is provided across all voltage, current and resistance ranges to prevent accidental operation from damaging the internal circuitry.
• Insulation protection: Double-insulated casing provides protection against electrical leakage and static electricity, making it suitable for complex industrial environments.
Advanced Features
• Data Transfer: Equipped with a standard RS232 interface for connecting to a computer to record and export measurement data in real time.
• Multi-function Measurement: Integrated measurement of voltage, current, resistance, capacitance, frequency, continuity, diodes and transistor hFE.
• Useful Features: Data hold (HOLD), relative measurement (REL), peak measurement and under-voltage warning.
Special Functions
• Data Hold (HOLD): Locks the measured value for easy recording and reading.
• Relative Measurement (REL): Subtracts probe resistance and initial values to accurately measure minute differences.
• Peak Measurement (PEAK): Captures signal peaks, suitable for measuring instantaneous voltage and current.
• RS232 Data Transmission: Connects to a computer for real-time data upload, report generation and long-term monitoring.
• Low Battery Alert: When the battery voltage falls below 7.5V, a low battery icon appears on the screen to remind the user to replace the battery.
Basic measurement
| Function | Measurement range | Primary use |
| DCV | 220mV~1000V | Measurement of DC signals in batteries, power supplies and circuits |
| ACV | 220mV~750V | Mains voltage, frequency converters, AC signal measurement |
| DCA | 200μA~10A | Measurement of DC current and load current in circuits |
| ACA | 200μA~10A | AC load and motor current measurement |
| Resistance | 220Ω~220MΩ | Resistance, continuity and insulation resistance measurements |
| Capacitor | 22nF~220mF | Capacitance testing of electrolytic capacitors and surface-mount capacitors |
| Frequency | 10Hz~220MHz | Frequency measurement of signal generators, crystal oscillators and frequency conversion equipment |
| Continuity test | Audible alert | Quick troubleshooting of circuits, wires and solder joints |
| Diode testing | Forward voltage drop measurement | Testing of diodes, light-emitting diodes and rectifier bridges |
| Transistor hFE | 10~1000 | Measurement of transistor gain, suitable for low-power transistors |
Environmental Specifications
• Operating Temperature: 0℃~40℃
• Storage Temperature: -10℃~50℃
• Operating Humidity: ≤75% RH (non-condensing)
• Safety Rating: CAT IV 600V, CAT III 1000V
Main Unit Core Components:
• Main Control Chip: Taiwan ChengYong ES51922, 22000 count LCD driver, 46-segment analog bar, 2 conversions/second.

• True RMS Chip: AD737, ensuring accuracy for non-sinusoidal wave measurements.
• Protection Circuit: PTC thermistor, MOV varistor, bidirectional diode, full-range overload protection.
• Interface Module: RS232 communication chip, opto-isolated design to prevent interference between the computer and the multimeter.
• Display: Custom LCD screen with backlight preset (UT61E has no backlight, UT61E+ has added backlight).
Response and Protection Indicators
• On/off response time: ≤1ms.
• Analog bar refresh rate: 2 times/second.
• Overload protection: Continuous protection at 1000V voltage and 10A current.
• Insulation resistance: ≥10MΩ (500V)
Communication Specifications
• Interface Type: RS232 (optically isolated).
• Baud Rate: 9600bps.
• Data Format: ASCII code, real-time transmission of measurement values, range, and status.
Software User Manual
The UT61E host computer software (UNI-T Data Logger) is compatible with Windows systems and is used for real-time data monitoring, recording, exporting, and analysis. It is used with an RS232 data cable.
Software Installation
• System Requirements: Windows XP/Vista/7/8/10 (32/64-bit).
• Software Connection Instructions: Power on the multimeter and switch to any measurement range.Connect the multimeter to the computer's serial port using an RS232 data cable.
Software core functions
Real-time monitoring: Dual display of numbers and curves; curves can be zoomed, paused, and reset.

• Data Logging: Automatically records measurement data; recording interval can be set (100ms~10s).
• Data Export: Supports saving as Excel (.xls), text (.txt), and image (.bmp) formats, facilitating report creation and data analysis.
• Multi-Channel Monitoring: Can simultaneously monitor data from multiple multimeters (requires multiple serial ports).
• Historical Data Query: Review historical records; supports filtering by time and value.
Horizontal comparison of different models-UT61 series
| Model | Display Counter | True RMS Value | Backlight | Auto Power Off | Power Supply | Dimensions / Weight |
| UT61E | 22000 | ✅ | ❌ | ❌ | 9V Battery | Normal |
| UT61E+ | 22000 | ✅ | ✅ | ✅ | 4×AAA(No. 7) | Slightly larger / Slightly heavier |
Solutions:
✅For electronic R&D, precision measurement, and the highest accuracy with RS232: Choose the UT61E (preferred).
✅For everyday portability, backlighting, automatic power-off, and Bluetooth: Choose the UT61E+ (preferred for everyday use).
We get it that standard arrangements do not continuously meet one of a kind prerequisites. Our experienced building group gives comprehensive OEM/ODM customization administrations. Whether you require adjusted recurrence ranges, specialized activating alternatives, or custom frame components, we work closely with you to create the idealize arrangement. Our adaptable plan approach guarantees your particular application needs are completely tended to whereas keeping up our quality standards.

Proven Encounter: Over 12 a long time of specialized skill in estimation and control frameworks development.
Expert Designing: Our gifted R&D group ceaselessly innovates to convey cutting-edge arrangements that keep you ahead of industry demands.
Quality Confirmation: Strict fabricating forms and comprehensive testing conventions guarantee dependable, steady performance.
Comprehensive Back: From starting meeting through progressing support, our committed group gives responsive specialized assistance.
Secure Conveyance: Collaborating with trusted coordinations suppliers guarantees secure, followed, and safety net provider shipment of your equipment.
Customer Center: We prioritize your victory with standard follow-ups, fast issue determination, and personalized benefit approaches.


Q: Why Connection Failure ?
A: Check if the data cable is securely plugged in, if the driver is installed, and if the serial port is occupied.
Q: Why Data Fluctuations?
A: Keep away from strong electromagnetic interference (such as from frequency converters and motors), and replace the shielded data cable.
Q: Why Curve Not Displayed?
A: Check if the measurement range is correct, and reconnect the device.

If you are looking for an affordable excellent choice. As the UT61 series Digit Multimeter product line, the UT61E Digit Multimeter DM4-Class 22000 Count is highly competitive in the digital multimeter market.It doesn't make you pay for features you don't need, yet it fully meets your requirements in terms of key measurement capabilities.
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