Description
The UNI-T UT203+ is a portable, high-precision digital clamp meter designed for measuring both AC and DC current and voltage. Equipped with True RMS measurement, intelligent anti-burn protection, and Non-Contact Voltage (NCV) detection, it delivers reliable electrical diagnostics for DIY electronics, battery pack assembly, solar power installations, and general electrical maintenance.
​Specification
​Manufacturer: UNI-T
​Model: UT203+
​Meter Type: Digital AC/DC Clamp Meter
​Display Type: 4000 Count LCD with Backlight
​Maximum Cable Diameter: 28mm
​DC Current Measuring Range: 40A / 400A
​DC Current Accuracy: ±(2.5% + 5 digits)
​AC Current Measuring Range: 40A / 400A
​AC Current Accuracy: ±(2.5% + 5 digits)
​DC Voltage Measuring Range: 400mV / 4V / 40V / 400V / 600V
​DC Voltage Accuracy: ±(0.5% + 2 digits)
​AC Voltage Measuring Range: 4V / 40V / 400V / 600V
​AC Voltage Accuracy: ±(0.8% + 5 digits)
​Resistance Measuring Range: 400Ω / 4kΩ / 40kΩ / 400kΩ / 40MΩ
​Resistance Accuracy: ±(0.8% + 2 digits)
​Capacitance Measuring Range: Up to 40mF
​Frequency Measuring Range: 10Hz – 10MHz
​Duty Cycle Range: 0.1% – 99.9%
​Measurement Functions: AC Current, DC Current, AC Voltage, DC Voltage, Resistance, Capacitance, Frequency, Duty Cycle, Continuity, Diode
​True Effective Value (True RMS): Supported
​Non-Contact Voltage (NCV) Testing: Supported
​Intelligent Anti-Burn Protection: Supported
​Continuity Test: Acoustic signal (Beeper)
​Diode Test: Supported
​Max/Min Mode: Supported
​Relative Mode (REL / Zero set): Supported
​Pollution Degree: 2
​Power Supply: 2 × 1.5V AAA (LR03) Batteries
​Product Dimensions: 215mm × 63mm × 36mm
​Weight with Battery: 235g
​Application
​Measuring real-time DC current draw and load on LiFePO4 battery packs, BMS setups, and power electronics without cutting wires
​Testing solar panel arrays, charge controller outputs, and DC-to-AC inverters
​Checking automotive electrical systems, starter motor currents, and parasitic battery drain
​Measuring running AC motor currents, capacitor health, and line voltage in HVAC and industrial equipment
​Safe non-contact voltage tracing and wire continuity verification i

Description
The UNI-T UT203+ is a portable, high-precision digital clamp meter designed for measuring both AC and DC current and voltage. Equipped with True RMS measurement, intelligent anti-burn protection, and Non-Contact Voltage (NCV) detection, it delivers reliable electrical diagnostics for DIY electronics, battery pack assembly, solar power installations, and general electrical maintenance.
​Specification
​Manufacturer: UNI-T
​Model: UT203+
​Meter Type: Digital AC/DC Clamp Meter
​Display Type: 4000 Count LCD with Backlight
​Maximum Cable Diameter: 28mm
​DC Current Measuring Range: 40A / 400A
​DC Current Accuracy: ±(2.5% + 5 digits)
​AC Current Measuring Range: 40A / 400A
​AC Current Accuracy: ±(2.5% + 5 digits)
​DC Voltage Measuring Range: 400mV / 4V / 40V / 400V / 600V
​DC Voltage Accuracy: ±(0.5% + 2 digits)
​AC Voltage Measuring Range: 4V / 40V / 400V / 600V
​AC Voltage Accuracy: ±(0.8% + 5 digits)
​Resistance Measuring Range: 400Ω / 4kΩ / 40kΩ / 400kΩ / 40MΩ
​Resistance Accuracy: ±(0.8% + 2 digits)
​Capacitance Measuring Range: Up to 40mF
​Frequency Measuring Range: 10Hz – 10MHz
​Duty Cycle Range: 0.1% – 99.9%
​Measurement Functions: AC Current, DC Current, AC Voltage, DC Voltage, Resistance, Capacitance, Frequency, Duty Cycle, Continuity, Diode
​True Effective Value (True RMS): Supported
​Non-Contact Voltage (NCV) Testing: Supported
​Intelligent Anti-Burn Protection: Supported
​Continuity Test: Acoustic signal (Beeper)
​Diode Test: Supported
​Max/Min Mode: Supported
​Relative Mode (REL / Zero set): Supported
​Pollution Degree: 2
​Power Supply: 2 × 1.5V AAA (LR03) Batteries
​Product Dimensions: 215mm × 63mm × 36mm
​Weight with Battery: 235g
​Application
​Measuring real-time DC current draw and load on LiFePO4 battery packs, BMS setups, and power electronics without cutting wires
​Testing solar panel arrays, charge controller outputs, and DC-to-AC inverters
​Checking automotive electrical systems, starter motor currents, and parasitic battery drain
​Measuring running AC motor currents, capacitor health, and line voltage in HVAC and industrial equipment
​Safe non-contact voltage tracing and wire continuity verification i