UNI-T UT8803E Classic-Series Bench Digital Multimeter is a 3⅚-digit auto-ranging meter with True-RMS AC measurement and a 5,999-count display.
Features an extended measurement function set that includes inductance to 100 H and capacitor D/Q parameters in addition to the standard voltage, current, resistance, capacitance, diode, continuity, frequency, and temperature functions.
For electronics labs and service-bench work that needs reliable component characterization beyond basic resistance and capacitance — transformer winding inductance, motor stator verification, resonant-circuit Q measurement, RF choke validation — the UT8803E delivers the function coverage of a dedicated LCR-light meter inside a general-purpose bench DMM. Thermocouple temperature measurement and USB-Device PC connectivity are standard.
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3⅚-digit, 5,999-count display — 0.3% basic DC voltage accuracy at the tier price point.
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True-RMS AC measurement — accurate readings on non-sinusoidal waveforms (switching supplies, motor drives, PWM, dimmed loads).
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Auto-ranging — across voltage, current, resistance, and capacitance functions, reducing operator workflow friction.
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Inductance measurement to 100 H — with D and Q quality-factor readout on capacitors and inductors.
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Thermocouple temperature measurement — range -40°C to 1000°C.
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USB-Device PC connection — included software for historical-data viewing and trend monitoring.
UNI-T UT8803E Details
3⅚-Digit Display and 0.3% Accuracy
The UT8803E delivers a 3⅚-digit 5,999-count display with 0.3% basic DC voltage accuracy. DC voltage resolution is 0.01 mV and DC current resolution is 0.1μA — covering the precision needed for component validation, prototype bring-up, and general bench measurement. Resistance resolution is 0.1Ω.
Measurement Function Coverage
Measurement coverage includes AC/DC voltage, AC/DC current, resistance, capacitance, diode, continuity, frequency, duty cycle, temperature (thermocouple), inductance to 100 H, D/Q parameters. Capacitance measurement extends to 60 mF. Frequency counter range is 600 Hz – 20 MHz.
True-RMS AC Measurement
True-RMS AC measurement delivers correct readings on distorted, non-sinusoidal waveforms — switching-mode power supply outputs, motor-drive currents, dimmed lighting loads, PWM signals — where an average-responding meter would read low. AC voltage and AC current measurements are both True-RMS.
Inductance and D/Q Parameter Measurement
Inductance measurement to 100 H covers transformer windings, motor stator inductance, RF choke verification, and general inductor characterization. The EQR key during capacitance or inductance measurement displays D (dissipation factor) and Q (quality factor) — useful for assessing capacitor quality and inductor self-resonance behavior without a dedicated LCR meter.
Reference Value (REL) and Statistics
The Reference Value (REL) function captures a baseline reading and displays subsequent measurements as deviations from that baseline. Combined with max/min statistics, this supports relative-comparison workflows useful for batch screening, drift studies, and component matching.
Temperature Measurement
Thermocouple temperature measurement covers the range -40°C to 1000°C with built-in cold-end compensation. Suitable for component-thermal-test, environmental monitoring, and process-temperature verification.
Connectivity and Remote Control
USB-Device connection to a host PC enables real-time historical-data viewing, trend-chart display, and configuration backup through the included software. For workbench logging and remote monitoring of long-running tests where a separate data logger would be overkill, USB-Device provides the path.
Applications
Electronics Service and Component Validation
- Comprehensive measurement coverage including inductance to 100 H and D/Q parameters — useful for transformer, motor, and inductor screening.
- True-RMS AC measurement on switching-supply outputs, dimmer-driven loads, and variable-frequency-drive circuits.
- Thermocouple temperature monitoring during burn-in and thermal characterization.
- Auto-ranging across voltage, current, resistance, and capacitance reducing operator workflow friction.
R&D Prototype Bring-Up
- 3⅚-digit precision on prototype voltage rails, current draws, and signal lines.
- Component characterization across L, C, and R within a single instrument.
- Capacitor and inductor quality-factor (Q) measurement for resonant-circuit design validation.
- Frequency counter to 20 MHz on clock and oscillator outputs.
Teaching Labs and Hobbyist Workbench
- Auto-ranging operation suitable for entry-level coursework where students focus on measurement concepts rather than range selection.
- Component-test workflows (diode, capacitance, inductance) supporting introductory circuit-theory labs.
- USB-Device connection for PC-based historical-data logging during long-duration experiments.
- Stable benchtop form factor at a teaching-budget price point.
