The UT123D is an intelligent digital multimeter that can automatically identify the function range and measurement range based on the input signal, effectively reducing operational difficulty and improving work efficiency. As for home users, entry-level electricians, and DIY enthusiasts. Positioned as "foolproof operation with professional-grade accuracy," it significantly lowers the barrier to entry through automatic recognition technology.
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 UT123D Intelligent Multimeter Beginner or Home is an upgraded version of the UNI-T UT123 series, featuring "D" upgrades. Compared to the basic UT123, it adds functions such as automatic range recognition and capacitance measurement. Compared to the UT123T, the UT123D places greater emphasis on intelligent and comprehensive measurement capabilities.
Intelligent Identification System
Security features
Measurement Capabilities
Special Function
| Features | Description | Application |
| NCV non-contact voltage detection | Green/red dual-color LED indicator; flashing red indicates high voltage (>120V) | Quickly determine if the line is live |
| LIVE live wire identification | Audible and visual alarms distinguish between phase wire and neutral wire | Socket wiring inspection |
| On/off buzzer | ≤30Ω buzzing, ≥50Ω silent | Quickly find the break point |
| Diode testing | The open-circuit voltage is approximately 3.9V, indicating a forward voltage drop | PN junction detection |
| Data Hold | Lock the current display value | Record measurement results |
Physical Properties
| Parameter | Values |
| Dimension | 130mm × 65mm × 28mm |
| Product Net Weight | Approx. 130g (including battery) |
| Drop Test | 1 Meter Drop Resistance |
| Screen size | 44mm × 26mm |
| Operating temperature | 0°C ~ 40°C |
| Storage temperature | -20°C ~ +60°C |
| Operating humidity | ≤80%RH (0~30°C),≤75%RH (30~40°C) |
The UT123D is the flagship smart multimeter in the UNI-T home multimeter series:
Measurement Function
| Type | Function | Range | Accuracy | |
| DCV | DCV Test | 4V / 40V / 400V / 600V | ±(0.5%+3) | |
| ACV | ACV Test | 4V / 40V / 400V / 600V | ±(0.8%+3) | |
| DCA | DCA Test | 9.999mA / 999.9mA | ±(1.0%+3) | |
| ACA | ACA Test | 9.999mA / 999.9mA | ±(1.2%+3) | |
| Resistance | Resistance Test | 400Ω ~ 40MΩ (6 gears) | ±(0.8%+2) ~ ±(2.0%+5) | |
| Capacitance | Capacitance Test | 4nF ~ 4000μF (7 gears) | ±(4%+5) ~ ±10% | |
| Diode | PN Junction Detection | 0~4V | Indicates positive pressure drop | |
| On/off buzzer | Circuit Continuity Detection | 0~400Ω | ≤30Ω buzzer | |
| NCV | Non-contact Voltage Detection | ≥50V AC | Audible and visual alarm | |
| LIVE | Neutral and live wire identification | ≥70V AC | Phase/Neutral Wire | |
Compared to competing products in the same price range, the UT123D Intelligent Multimeter Beginner or Home
| Item | UNI-T UT123D | KAIWEETS HT118A | Innova 3320 |
| DCV Accuracy | ±(0.5%+3) | ±(1.0%+5) | ±(1.5%+5) |
| ACV Range | 4V-600V | 200mV-600V | 200mV-600V |
| On/off buzzer | ✅ | ✅ | ❌ |
| Burn protection | Intelligent anti-burn + fuse | Fuse only | Fuse only |
| Weight | 130g | 210g | 240g |
| Dimensions | 130×65×28mm | 160×75×35mm | 170×80×40mm |
Note: Compared to entry-level multimeters, the UT123D offers superior overload protection and more stable load fluctuation readings.
Applications:
Safety
| Item | Safety Specifications |
| Safety standards | IEC 61010-1:2010 |
| Insulation class | Double insulation/reinforced insulation |
| Pollution level | Level 2 |
| Level CAT | CAT III 600V / CAT II 600V |
| Maximum input voltage | 600V AC/DC |
| Overvoltage warning | >30V display ⚡ symbol |
Attention:
The UT123D is a pure hardware digital multimeter, containing no software or firmware components:
❌ No Bluetooth connectivity
❌ No USB port
❌ No wireless transmission
❌ No accompanying app
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 Unstable readings?
A: Electromagnetic interference/poor contact,need to keep away from interference sources / check connectivity.
Q:Why NCV does not respond?
A: Low voltage/too far distance,need to near the test point.
Q:Why the buzzer did not sound?
A: Open circuit/excessive resistance,please check the circuit.
Q: What no current reading?
A: Fuse blows,please replace fuse.
✅Preventing Electric Shock
Never measure voltages higher than 60V DC or 30V AC RMS,Exercise extreme caution when measuring high voltages to prevent electric shock.
✅Precautions for current measurement
Never connect the multimeter in parallel to the circuit,It must be connected in series to the circuit being measured,When measuring current >5A, each measurement should last <10 seconds, with intervals >5 minutes.
✅Overvoltage Protection
Do not apply voltage exceeding 600V,When voltage > 30V, the display will show a warning symbol (⚡),When voltage > 600V, the ⚡ symbol will flash as an alarm.
❌Do not switch ranges while the power is on
❌Do not switch ranges during measurement
❌Disconnect the power supply and fully discharge the power before measurement

If you are looking for an affordable excellent choice. As the UT123D Intelligent Multimeter product line, the UT123D Intelligent Multimeter Beginner is highly entry-level for home users, electricians and DIY enthusiasts 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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